231302000091 has 4 divisors (see below), whose sum is σ = 308402666792. Its totient is φ = 154201333392.

The previous prime is 231302000029. The next prime is 231302000107. The reversal of 231302000091 is 190000203132.

It is a happy number.

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

It is not a de Polignac number, because 231302000091 - 2¹⁴ = 231301983707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231302100091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38550333346 + ... + 38550333351.

It is an arithmetic number, because the mean of its divisors is an integer number (77100666698).

Almost surely, 2^231302000091 is an apocalyptic number.

231302000091 is a deficient number, since it is larger than the sum of its proper divisors (77100666701).

231302000091 is an equidigital number, since it uses as much as digits as its factorization.

231302000091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77100666700.

The product of its (nonzero) digits is 324, while the sum is 21.

The spelling of 231302000091 in words is "two hundred thirty-one billion, three hundred two million, ninety-one", and thus it is an aban number.