1230131233291 has 4 divisors (see below), whose sum is σ = 1230165681192. Its totient is φ = 1230096785392.

The previous prime is 1230131233283. The next prime is 1230131233307. The reversal of 1230131233291 is 1923321310321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1230131233291 - 2³ = 1230131233283 is a prime.

It is a super-2 number, since 2×1230131233291² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230131233231) 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, 17170330 + ... + 17241823.

It is an arithmetic number, because the mean of its divisors is an integer number (307541420298).

Almost surely, 2^{1230131233291} is an apocalyptic number.

1230131233291 is a deficient number, since it is larger than the sum of its proper divisors (34447901).

1230131233291 is an equidigital number, since it uses as much as digits as its factorization.

1230131233291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34447900.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 1230131233291 in words is "one trillion, two hundred thirty billion, one hundred thirty-one million, two hundred thirty-three thousand, two hundred ninety-one".