1230121300 has 36 divisors (see below), whose sum is σ = 2677959676. Its totient is φ = 490464000.

The previous prime is 1230121229. The next prime is 1230121301. The reversal of 1230121300 is 31210321.

It can be written as a sum of positive squares in 6 ways, for example, as 394101904 + 836019396 = 19852^2 + 28914^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230121301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11650 + ... + 50950.

Almost surely, 2^1230121300 is an apocalyptic number.

1230121300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230121300 is an abundant number, since it is smaller than the sum of its proper divisors (1447838376).

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

1230121300 is a wasteful number, since it uses less digits than its factorization.

1230121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39628 (or 39621 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1230121300 is about 35073.0851223556. The cubic root of 1230121300 is about 1071.4764896241.

Adding to 1230121300 its reverse (31210321), we get a palindrome (1261331621).

The spelling of 1230121300 in words is "one billion, two hundred thirty million, one hundred twenty-one thousand, three hundred".