13131302221131 has 32 divisors (see below), whose sum is σ = 17666407507968. Its totient is φ = 8675571240960.

The previous prime is 13131302221129. The next prime is 13131302221133. The reversal of 13131302221131 is 13112220313131.

It is an interprime number because it is at equal distance from previous prime (13131302221129) and next prime (13131302221133).

It is not a de Polignac number, because 13131302221131 - 2¹ = 13131302221129 is a prime.

It is a super-2 number, since 2×13131302221131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13131302221133) 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, 201903640 + ... + 201968666.

It is an arithmetic number, because the mean of its divisors is an integer number (552075234624).

Almost surely, 2^{13131302221131} is an apocalyptic number.

13131302221131 is a deficient number, since it is larger than the sum of its proper divisors (4535105286837).

13131302221131 is a wasteful number, since it uses less digits than its factorization.

13131302221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66451.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 13131302221131 its reverse (13112220313131), we get a palindrome (26243522534262).

The spelling of 13131302221131 in words is "thirteen trillion, one hundred thirty-one billion, three hundred two million, two hundred twenty-one thousand, one hundred thirty-one".