231004343155 has 32 divisors (see below), whose sum is σ = 288304128000. Its totient is φ = 177498604800.

The previous prime is 231004343077. The next prime is 231004343159. The reversal of 231004343155 is 551343400132.

It is not a de Polignac number, because 231004343155 - 2⁷ = 231004343027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (231004343159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12606450 + ... + 12624760.

It is an arithmetic number, because the mean of its divisors is an integer number (9009504000).

Almost surely, 2^231004343155 is an apocalyptic number.

231004343155 is a deficient number, since it is larger than the sum of its proper divisors (57299784845).

231004343155 is a wasteful number, since it uses less digits than its factorization.

231004343155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18955.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 231004343155 its reverse (551343400132), we get a palindrome (782347743287).

The spelling of 231004343155 in words is "two hundred thirty-one billion, four million, three hundred forty-three thousand, one hundred fifty-five".