15151205402131 has 4 divisors (see below), whose sum is σ = 15151390171632. Its totient is φ = 15151020632632.

The previous prime is 15151205402083. The next prime is 15151205402141. The reversal of 15151205402131 is 13120450215151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15151205402131 is a prime.

It is a super-2 number, since 2×15151205402131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15151205402093 and 15151205402102.

It is not an unprimeable number, because it can be changed into a prime (15151205402141) 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 3 ways as a sum of consecutive naturals, for example, 92261695 + ... + 92425768.

It is an arithmetic number, because the mean of its divisors is an integer number (3787847542908).

Almost surely, 2^{15151205402131} is an apocalyptic number.

15151205402131 is a deficient number, since it is larger than the sum of its proper divisors (184769501).

15151205402131 is an equidigital number, since it uses as much as digits as its factorization.

15151205402131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184769500.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 15151205402131 its reverse (13120450215151), we get a palindrome (28271655617282).

The spelling of 15151205402131 in words is "fifteen trillion, one hundred fifty-one billion, two hundred five million, four hundred two thousand, one hundred thirty-one".