23312311333431 has 16 divisors (see below), whose sum is σ = 31110197565408. Its totient is φ = 15527987136000.

The previous prime is 23312311333369. The next prime is 23312311333463. The reversal of 23312311333431 is 13433311321332.

It is a happy number.

It is not a de Polignac number, because 23312311333431 - 2²³ = 23312302944823 is a prime.

It is a super-2 number, since 2×23312311333431² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23312311333392 and 23312311333401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23312311333481) 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, 22149435 + ... + 23178051.

It is an arithmetic number, because the mean of its divisors is an integer number (1944387347838).

Almost surely, 2^{23312311333431} is an apocalyptic number.

23312311333431 is a deficient number, since it is larger than the sum of its proper divisors (7797886231977).

23312311333431 is a wasteful number, since it uses less digits than its factorization.

23312311333431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035202.

The product of its digits is 34992, while the sum is 33.

Adding to 23312311333431 its reverse (13433311321332), we get a palindrome (36745622654763).

The spelling of 23312311333431 in words is "twenty-three trillion, three hundred twelve billion, three hundred eleven million, three hundred thirty-three thousand, four hundred thirty-one".