36121513131 has 48 divisors (see below), whose sum is σ = 58864985088. Its totient is φ = 21145924800.

The previous prime is 36121513123. The next prime is 36121513157. The reversal of 36121513131 is 13131512163.

It is a happy number.

36121513131 is a `hidden beast` number, since 3 + 6 + 12 + 1 + 513 + 131 = 666.

It is not a de Polignac number, because 36121513131 - 2³ = 36121513123 is a prime.

It is a super-2 number, since 2×36121513131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36121513095 and 36121513104.

It is not an unprimeable number, because it can be changed into a prime (36121513121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1667985 + ... + 1689501.

It is an arithmetic number, because the mean of its divisors is an integer number (1226353856).

Almost surely, 2^36121513131 is an apocalyptic number.

36121513131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

36121513131 is a deficient number, since it is larger than the sum of its proper divisors (22743471957).

36121513131 is a wasteful number, since it uses less digits than its factorization.

36121513131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22112 (or 22109 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The spelling of 36121513131 in words is "thirty-six billion, one hundred twenty-one million, five hundred thirteen thousand, one hundred thirty-one".