231433320400432 has 40 divisors (see below), whose sum is σ = 454722461114112. Its totient is φ = 114085623489600.

The previous prime is 231433320400391. The next prime is 231433320400441. The reversal of 231433320400432 is 234004023334132.

It is a super-2 number, since 2×231433320400432² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109727863 + ... + 111817129.

Almost surely, 2^{231433320400432} is an apocalyptic number.

It is an amenable number.

231433320400432 is a deficient number, since it is larger than the sum of its proper divisors (223289140713680).

231433320400432 is a wasteful number, since it uses less digits than its factorization.

231433320400432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186857 (or 2186851 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 34.

Adding to 231433320400432 its reverse (234004023334132), we get a palindrome (465437343734564).

The spelling of 231433320400432 in words is "two hundred thirty-one trillion, four hundred thirty-three billion, three hundred twenty million, four hundred thousand, four hundred thirty-two".