1230023120 has 40 divisors (see below), whose sum is σ = 2872334760. Its totient is φ = 489853440.

The previous prime is 1230023107. The next prime is 1230023129. The reversal of 1230023120 is 213200321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 628204096 + 601819024 = 25064^2 + 24532^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1230023095 and 1230023104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230023129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15251 + ... + 51890.

It is an arithmetic number, because the mean of its divisors is an integer number (71808369).

Almost surely, 2^1230023120 is an apocalyptic number.

1230023120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230023120 is an abundant number, since it is smaller than the sum of its proper divisors (1642311640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230023120 is a wasteful number, since it uses less digits than its factorization.

1230023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67383 (or 67377 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1230023120 is about 35071.6854456697. The cubic root of 1230023120 is about 1071.4479828525.

Adding to 1230023120 its reverse (213200321), we get a palindrome (1443223441).

The spelling of 1230023120 in words is "one billion, two hundred thirty million, twenty-three thousand, one hundred twenty".