20112153131 has 16 divisors (see below), whose sum is σ = 23310220224. Its totient is φ = 16995515904.

The previous prime is 20112153119. The next prime is 20112153133. The reversal of 20112153131 is 13135121102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112153131 is a prime.

It is a super-2 number, since 2×20112153131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112153133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411961 + ... + 1426133.

It is an arithmetic number, because the mean of its divisors is an integer number (1456888764).

Almost surely, 2^20112153131 is an apocalyptic number.

20112153131 is a deficient number, since it is larger than the sum of its proper divisors (3198067093).

20112153131 is a wasteful number, since it uses less digits than its factorization.

20112153131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17030.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 20112153131 its reverse (13135121102), we get a palindrome (33247274233).

The spelling of 20112153131 in words is "twenty billion, one hundred twelve million, one hundred fifty-three thousand, one hundred thirty-one".