21146160131 has 2 divisors, whose sum is σ = 21146160132. Its totient is φ = 21146160130.

The previous prime is 21146160083. The next prime is 21146160137. The reversal of 21146160131 is 13106164112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21146160131 - 2¹⁴ = 21146143747 is a prime.

It is a super-2 number, since 2×21146160131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21146160131.

It is not a weakly prime, because it can be changed into another prime (21146160137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10573080065 + 10573080066.

It is an arithmetic number, because the mean of its divisors is an integer number (10573080066).

Almost surely, 2^21146160131 is an apocalyptic number.

21146160131 is a deficient number, since it is larger than the sum of its proper divisors (1).

21146160131 is an equidigital number, since it uses as much as digits as its factorization.

21146160131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 21146160131 in words is "twenty-one billion, one hundred forty-six million, one hundred sixty thousand, one hundred thirty-one".