1311625532151 has 48 divisors (see below), whose sum is σ = 2142727292160. Its totient is φ = 792367923600.

The previous prime is 1311625532149. The next prime is 1311625532197. The reversal of 1311625532151 is 1512355261131.

1311625532151 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 625 + 5 + 3 + 21 + 5 + 1 = 666.

It is not a de Polignac number, because 1311625532151 - 2¹ = 1311625532149 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311625572151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 370576 + ... + 1661498.

It is an arithmetic number, because the mean of its divisors is an integer number (44640151920).

Almost surely, 2^{1311625532151} is an apocalyptic number.

1311625532151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1311625532151 is a deficient number, since it is larger than the sum of its proper divisors (831101760009).

1311625532151 is a wasteful number, since it uses less digits than its factorization.

1311625532151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291265 (or 1291248 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The spelling of 1311625532151 in words is "one trillion, three hundred eleven billion, six hundred twenty-five million, five hundred thirty-two thousand, one hundred fifty-one".