1231591700147 has 8 divisors (see below), whose sum is σ = 1246089296592. Its totient is φ = 1217130854400.

The previous prime is 1231591700117. The next prime is 1231591700173. The reversal of 1231591700147 is 7410071951321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231591700147 - 2¹⁰ = 1231591699123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231591700117) 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, 9120254 + ... + 9254307.

It is an arithmetic number, because the mean of its divisors is an integer number (155761162074).

Almost surely, 2^{1231591700147} is an apocalyptic number.

1231591700147 is a deficient number, since it is larger than the sum of its proper divisors (14497596445).

1231591700147 is an equidigital number, since it uses as much as digits as its factorization.

1231591700147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18375349.

The product of its (nonzero) digits is 52920, while the sum is 41.

The spelling of 1231591700147 in words is "one trillion, two hundred thirty-one billion, five hundred ninety-one million, seven hundred thousand, one hundred forty-seven".