131513314251 has 64 divisors (see below), whose sum is σ = 198071516160. Its totient is φ = 76926720000.

The previous prime is 131513314249. The next prime is 131513314291. The reversal of 131513314251 is 152413315131.

It is not a de Polignac number, because 131513314251 - 2¹ = 131513314249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131513314241) 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, 54956311 + ... + 54958703.

It is an arithmetic number, because the mean of its divisors is an integer number (3094867440).

Almost surely, 2^131513314251 is an apocalyptic number.

131513314251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131513314251 is a deficient number, since it is larger than the sum of its proper divisors (66558201909).

131513314251 is a wasteful number, since it uses less digits than its factorization.

131513314251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868.

The product of its digits is 5400, while the sum is 30.

Adding to 131513314251 its reverse (152413315131), we get a palindrome (283926629382).

The spelling of 131513314251 in words is "one hundred thirty-one billion, five hundred thirteen million, three hundred fourteen thousand, two hundred fifty-one".