30615152131 has 4 divisors (see below), whose sum is σ = 30634994992. Its totient is φ = 30595309272.

The previous prime is 30615152089. The next prime is 30615152149. The reversal of 30615152131 is 13125151603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13125151603 = 54167 ⋅242309.

It is a cyclic number.

It is not a de Polignac number, because 30615152131 - 2¹⁵ = 30615119363 is a prime.

It is a super-2 number, since 2×30615152131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30615152131.

It is not an unprimeable number, because it can be changed into a prime (30615152171) 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, 9919116 + ... + 9922201.

It is an arithmetic number, because the mean of its divisors is an integer number (7658748748).

Almost surely, 2^30615152131 is an apocalyptic number.

30615152131 is a deficient number, since it is larger than the sum of its proper divisors (19842861).

30615152131 is a wasteful number, since it uses less digits than its factorization.

30615152131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19842860.

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 30615152131 in words is "thirty billion, six hundred fifteen million, one hundred fifty-two thousand, one hundred thirty-one".