20013125015151 has 48 divisors (see below), whose sum is σ = 30217383356160. Its totient is φ = 13236191959680.

The previous prime is 20013125015141. The next prime is 20013125015159. The reversal of 20013125015151 is 15151052131002.

It is a happy number.

20013125015151 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 3 + 1 + 2 + 501 + 5 + 151 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-20013125015151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013125015159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14752380 + ... + 16051758.

It is an arithmetic number, because the mean of its divisors is an integer number (629528819920).

Almost surely, 2^{20013125015151} is an apocalyptic number.

20013125015151 is a deficient number, since it is larger than the sum of its proper divisors (10204258341009).

20013125015151 is a wasteful number, since it uses less digits than its factorization.

20013125015151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299898 (or 1299886 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 20013125015151 its reverse (15151052131002), we get a palindrome (35164177146153).

The spelling of 20013125015151 in words is "twenty trillion, thirteen billion, one hundred twenty-five million, fifteen thousand, one hundred fifty-one".