121233200031 has 12 divisors (see below), whose sum is σ = 182728301808. Its totient is φ = 77308127424.

The previous prime is 121233199999. The next prime is 121233200063. The reversal of 121233200031 is 130002332121.

It is an interprime number because it is at equal distance from previous prime (121233199999) and next prime (121233200063).

It is not a de Polignac number, because 121233200031 - 2⁵ = 121233199999 is a prime.

It is a super-2 number, since 2×121233200031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121233199977 and 121233200013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121233202031) 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, 292833610 + ... + 292834023.

It is an arithmetic number, because the mean of its divisors is an integer number (15227358484).

Almost surely, 2^121233200031 is an apocalyptic number.

121233200031 is a deficient number, since it is larger than the sum of its proper divisors (61495101777).

121233200031 is a wasteful number, since it uses less digits than its factorization.

121233200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585667662 (or 585667659 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121233200031 its reverse (130002332121), we get a palindrome (251235532152).

The spelling of 121233200031 in words is "one hundred twenty-one billion, two hundred thirty-three million, two hundred thousand, thirty-one".