231087400001 has 4 divisors (see below), whose sum is σ = 231089525892. Its totient is φ = 231085274112.

The previous prime is 231087399997. The next prime is 231087400081. The reversal of 231087400001 is 100004780132.

231087400001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70748020225 + 160339379776 = 265985^2 + 400424^2 .

It is a cyclic number.

It is not a de Polignac number, because 231087400001 - 2² = 231087399997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231087400081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890576 + ... + 1120401.

It is an arithmetic number, because the mean of its divisors is an integer number (57772381473).

Almost surely, 2^231087400001 is an apocalyptic number.

It is an amenable number.

231087400001 is a deficient number, since it is larger than the sum of its proper divisors (2125891).

231087400001 is a wasteful number, since it uses less digits than its factorization.

231087400001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125890.

The product of its (nonzero) digits is 1344, while the sum is 26.

The spelling of 231087400001 in words is "two hundred thirty-one billion, eighty-seven million, four hundred thousand, one".