231433204351 has 16 divisors (see below), whose sum is σ = 248033703744. Its totient is φ = 215180619264.

The previous prime is 231433204339. The next prime is 231433204369. The reversal of 231433204351 is 153402334132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 231433204351 - 2⁵ = 231433204319 is a prime.

It is a super-2 number, since 2×231433204351² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231433204391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211126 + ... + 712348.

It is an arithmetic number, because the mean of its divisors is an integer number (15502106484).

Almost surely, 2^231433204351 is an apocalyptic number.

231433204351 is a deficient number, since it is larger than the sum of its proper divisors (16600499393).

231433204351 is a wasteful number, since it uses less digits than its factorization.

231433204351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501570.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 231433204351 its reverse (153402334132), we get a palindrome (384835538483).

The spelling of 231433204351 in words is "two hundred thirty-one billion, four hundred thirty-three million, two hundred four thousand, three hundred fifty-one".