23311031005 has 8 divisors (see below), whose sum is σ = 28729270872. Its totient is φ = 18144802368.

The previous prime is 23311030903. The next prime is 23311031017. The reversal of 23311031005 is 50013011332.

It can be written as a sum of positive squares in 4 ways, for example, as 2041142041 + 21269888964 = 45179^2 + 145842^2 .

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

It is not a de Polignac number, because 23311031005 - 2¹¹ = 23311028957 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 63002602 + ... + 63002971.

It is an arithmetic number, because the mean of its divisors is an integer number (3591158859).

Almost surely, 2^23311031005 is an apocalyptic number.

It is an amenable number.

23311031005 is a deficient number, since it is larger than the sum of its proper divisors (5418239867).

23311031005 is a wasteful number, since it uses less digits than its factorization.

23311031005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126005615.

The product of its (nonzero) digits is 270, while the sum is 19.

Adding to 23311031005 its reverse (50013011332), we get a palindrome (73324042337).

The spelling of 23311031005 in words is "twenty-three billion, three hundred eleven million, thirty-one thousand, five".