23311322031 has 8 divisors (see below), whose sum is σ = 31170823600. Its totient is φ = 15496350912.

The previous prime is 23311322003. The next prime is 23311322051. The reversal of 23311322031 is 13022311332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23311322031 - 2⁶ = 23311321967 is a prime.

It is a super-2 number, since 2×23311322031² (a number of 22 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 = 23311321989 and 23311322007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311322051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11131390 + ... + 11133483.

It is an arithmetic number, because the mean of its divisors is an integer number (3896352950).

Almost surely, 2^23311322031 is an apocalyptic number.

23311322031 is a deficient number, since it is larger than the sum of its proper divisors (7859501569).

23311322031 is a wasteful number, since it uses less digits than its factorization.

23311322031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22265225.

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

Adding to 23311322031 its reverse (13022311332), we get a palindrome (36333633363).

The spelling of 23311322031 in words is "twenty-three billion, three hundred eleven million, three hundred twenty-two thousand, thirty-one".