231056005508 has 24 divisors (see below), whose sum is σ = 407549869272. Its totient is φ = 114616767744.

The previous prime is 231056005507. The next prime is 231056005517. The reversal of 231056005508 is 805500650132.

It can be written as a sum of positive squares in 4 ways, for example, as 41615184004 + 189440821504 = 203998^2 + 435248^2 .

It is not an unprimeable number, because it can be changed into a prime (231056005507) 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, 189335 + ... + 705662.

It is an arithmetic number, because the mean of its divisors is an integer number (16981244553).

Almost surely, 2^231056005508 is an apocalyptic number.

It is an amenable number.

231056005508 is a deficient number, since it is larger than the sum of its proper divisors (176493863764).

231056005508 is a wasteful number, since it uses less digits than its factorization.

231056005508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895511 (or 895509 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 231056005508 in words is "two hundred thirty-one billion, fifty-six million, five thousand, five hundred eight".