231031005011 has 8 divisors (see below), whose sum is σ = 231251516400. Its totient is φ = 230810584320.

The previous prime is 231031004983. The next prime is 231031005013. The reversal of 231031005011 is 110500130132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231031005011 is a prime.

It is a super-2 number, since 2×231031005011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231031005013) 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, 5758820 + ... + 5798798.

It is an arithmetic number, because the mean of its divisors is an integer number (28906439550).

Almost surely, 2^231031005011 is an apocalyptic number.

231031005011 is a deficient number, since it is larger than the sum of its proper divisors (220511389).

231031005011 is a wasteful number, since it uses less digits than its factorization.

231031005011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45349.

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 231031005011 its reverse (110500130132), we get a palindrome (341531135143).

The spelling of 231031005011 in words is "two hundred thirty-one billion, thirty-one million, five thousand, eleven".