231223311030 has 64 divisors (see below), whose sum is σ = 564469585920. Its totient is φ = 60600731136.

The previous prime is 231223311017. The next prime is 231223311043. The reversal of 231223311030 is 30113322132.

It is an interprime number because it is at equal distance from previous prime (231223311017) and next prime (231223311043).

It is a super-2 number, since 2×231223311030² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231223310988 and 231223311006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9533499 + ... + 9557721.

It is an arithmetic number, because the mean of its divisors is an integer number (8819837280).

Almost surely, 2^231223311030 is an apocalyptic number.

231223311030 is an abundant number, since it is smaller than the sum of its proper divisors (333246274890).

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

231223311030 is a wasteful number, since it uses less digits than its factorization.

231223311030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29685.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231223311030 its reverse (30113322132), we get a palindrome (261336633162).

The spelling of 231223311030 in words is "two hundred thirty-one billion, two hundred twenty-three million, three hundred eleven thousand, thirty".