2521140156131 has 4 divisors (see below), whose sum is σ = 2630754945552. Its totient is φ = 2411525366712.

The previous prime is 2521140156113. The next prime is 2521140156151. The reversal of 2521140156131 is 1316510411252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2521140156131 is a prime.

It is a super-2 number, since 2×2521140156131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521140156151) 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, 54807394676 + ... + 54807394721.

It is an arithmetic number, because the mean of its divisors is an integer number (657688736388).

Almost surely, 2^{2521140156131} is an apocalyptic number.

2521140156131 is a deficient number, since it is larger than the sum of its proper divisors (109614789421).

2521140156131 is a wasteful number, since it uses less digits than its factorization.

2521140156131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109614789420.

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 2521140156131 its reverse (1316510411252), we get a palindrome (3837650567383).

The spelling of 2521140156131 in words is "two trillion, five hundred twenty-one billion, one hundred forty million, one hundred fifty-six thousand, one hundred thirty-one".