16331020131 has 32 divisors (see below), whose sum is σ = 23827046400. Its totient is φ = 9904803840.

The previous prime is 16331020127. The next prime is 16331020141. The reversal of 16331020131 is 13102013361.

It is not a de Polignac number, because 16331020131 - 2² = 16331020127 is a prime.

It is a super-2 number, since 2×16331020131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16331020098 and 16331020107.

It is not an unprimeable number, because it can be changed into a prime (16331020141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1463190 + ... + 1474308.

It is an arithmetic number, because the mean of its divisors is an integer number (744595200).

Almost surely, 2^16331020131 is an apocalyptic number.

16331020131 is a deficient number, since it is larger than the sum of its proper divisors (7496026269).

16331020131 is a wasteful number, since it uses less digits than its factorization.

16331020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12099.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 16331020131 its reverse (13102013361), we get a palindrome (29433033492).

The spelling of 16331020131 in words is "sixteen billion, three hundred thirty-one million, twenty thousand, one hundred thirty-one".