23311404423031 has 16 divisors (see below), whose sum is σ = 23655150586368. Its totient is φ = 22968091792800.

The previous prime is 23311404423029. The next prime is 23311404423049. The reversal of 23311404423031 is 13032440411332.

It is a cyclic number.

It is not a de Polignac number, because 23311404423031 - 2¹ = 23311404423029 is a prime.

It is a super-2 number, since 2×23311404423031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23311404422984 and 23311404423002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311434423031) 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, 743973241 + ... + 744004573.

It is an arithmetic number, because the mean of its divisors is an integer number (1478446911648).

Almost surely, 2^{23311404423031} is an apocalyptic number.

23311404423031 is a deficient number, since it is larger than the sum of its proper divisors (343746163337).

23311404423031 is a wasteful number, since it uses less digits than its factorization.

23311404423031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37902.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 23311404423031 its reverse (13032440411332), we get a palindrome (36343844834363).

The spelling of 23311404423031 in words is "twenty-three trillion, three hundred eleven billion, four hundred four million, four hundred twenty-three thousand, thirty-one".