13131420340251 has 64 divisors (see below), whose sum is σ = 20040730214400. Its totient is φ = 7596911817216.

The previous prime is 13131420340249. The next prime is 13131420340253. The reversal of 13131420340251 is 15204302413131.

It is an interprime number because it is at equal distance from previous prime (13131420340249) and next prime (13131420340253).

It is not a de Polignac number, because 13131420340251 - 2¹ = 13131420340249 is a prime.

It is a super-2 number, since 2×13131420340251² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13131420340253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7346806 + ... + 8957588.

It is an arithmetic number, because the mean of its divisors is an integer number (313136409600).

Almost surely, 2^{13131420340251} is an apocalyptic number.

13131420340251 is a deficient number, since it is larger than the sum of its proper divisors (6909309874149).

13131420340251 is a wasteful number, since it uses less digits than its factorization.

13131420340251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611048.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 13131420340251 its reverse (15204302413131), we get a palindrome (28335722753382).

The spelling of 13131420340251 in words is "thirteen trillion, one hundred thirty-one billion, four hundred twenty million, three hundred forty thousand, two hundred fifty-one".