11515000142631 has 4 divisors (see below), whose sum is σ = 15353333523512. Its totient is φ = 7676666761752.

The previous prime is 11515000142617. The next prime is 11515000142677. The reversal of 11515000142631 is 13624100051511.

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

It is not a de Polignac number, because 11515000142631 - 2¹⁸ = 11514999880487 is a prime.

It is a super-2 number, since 2×11515000142631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515000142131) 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, 1919166690436 + ... + 1919166690441.

It is an arithmetic number, because the mean of its divisors is an integer number (3838333380878).

Almost surely, 2^{11515000142631} is an apocalyptic number.

11515000142631 is a deficient number, since it is larger than the sum of its proper divisors (3838333380881).

11515000142631 is an equidigital number, since it uses as much as digits as its factorization.

11515000142631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838333380880.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 11515000142631 in words is "eleven trillion, five hundred fifteen billion, one hundred forty-two thousand, six hundred thirty-one".