13220101131 has 32 divisors (see below), whose sum is σ = 18223564800. Its totient is φ = 8519385600.

The previous prime is 13220101127. The next prime is 13220101171. The reversal of 13220101131 is 13110102231.

It is a happy number.

It is not a de Polignac number, because 13220101131 - 2² = 13220101127 is a prime.

It is a super-2 number, since 2×13220101131² (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 13220101131.

It is not an unprimeable number, because it can be changed into a prime (13220101121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6632271 + ... + 6634263.

It is an arithmetic number, because the mean of its divisors is an integer number (569486400).

Almost surely, 2^13220101131 is an apocalyptic number.

13220101131 is a deficient number, since it is larger than the sum of its proper divisors (5003463669).

13220101131 is a wasteful number, since it uses less digits than its factorization.

13220101131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13220101131 its reverse (13110102231), we get a palindrome (26330203362).

The spelling of 13220101131 in words is "thirteen billion, two hundred twenty million, one hundred one thousand, one hundred thirty-one".