13235213131 has 16 divisors (see below), whose sum is σ = 15613684416. Its totient is φ = 10981789056.

The previous prime is 13235213093. The next prime is 13235213171. The reversal of 13235213131 is 13131253231.

It is not a de Polignac number, because 13235213131 - 2¹⁷ = 13235082059 is a prime.

It is a super-2 number, since 2×13235213131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13235213096 and 13235213105.

It is not an unprimeable number, because it can be changed into a prime (13235213171) 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, 78676 + ... + 180721.

It is an arithmetic number, because the mean of its divisors is an integer number (975855276).

Almost surely, 2^13235213131 is an apocalyptic number.

13235213131 is a deficient number, since it is larger than the sum of its proper divisors (2378471285).

13235213131 is a wasteful number, since it uses less digits than its factorization.

13235213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259638.

The product of its digits is 1620, while the sum is 25.

Adding to 13235213131 its reverse (13131253231), we get a palindrome (26366466362).

The spelling of 13235213131 in words is "thirteen billion, two hundred thirty-five million, two hundred thirteen thousand, one hundred thirty-one".