1232031121 has 8 divisors (see below), whose sum is σ = 1250683200. Its totient is φ = 1213415280.

The previous prime is 1232031113. The next prime is 1232031131. The reversal of 1232031121 is 1211302321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1232031121 - 2³ = 1232031113 is a prime.

It is a super-2 number, since 2×1232031121² = 3035801366225033282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232031095 and 1232031104.

It is not an unprimeable number, because it can be changed into a prime (1232031131) 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, 63835 + ... + 80863.

It is an arithmetic number, because the mean of its divisors is an integer number (156335400).

Almost surely, 2^1232031121 is an apocalyptic number.

It is an amenable number.

1232031121 is a deficient number, since it is larger than the sum of its proper divisors (18652079).

1232031121 is a wasteful number, since it uses less digits than its factorization.

1232031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18119.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1232031121 is about 35100.3008676564. The cubic root of 1232031121 is about 1072.0307087369.

Adding to 1232031121 its reverse (1211302321), we get a palindrome (2443333442).

The spelling of 1232031121 in words is "one billion, two hundred thirty-two million, thirty-one thousand, one hundred twenty-one".