15972130031 has 16 divisors (see below), whose sum is σ = 19369771008. Its totient is φ = 12970821600.

The previous prime is 15972130021. The next prime is 15972130033. The reversal of 15972130031 is 13003127951.

It is not a de Polignac number, because 15972130031 - 2¹⁸ = 15971867887 is a prime.

It is a super-2 number, since 2×15972130031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15972130031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15972130033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1797071 + ... + 1805936.

It is an arithmetic number, because the mean of its divisors is an integer number (1210610688).

Almost surely, 2^15972130031 is an apocalyptic number.

15972130031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15972130031 is a deficient number, since it is larger than the sum of its proper divisors (3397640977).

15972130031 is a wasteful number, since it uses less digits than its factorization.

15972130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603062.

The product of its (nonzero) digits is 5670, while the sum is 32.

Adding to 15972130031 its reverse (13003127951), we get a palindrome (28975257982).

The spelling of 15972130031 in words is "fifteen billion, nine hundred seventy-two million, one hundred thirty thousand, thirty-one".