15320002220131 has 16 divisors (see below), whose sum is σ = 17549759867904. Its totient is φ = 13100566175424.

The previous prime is 15320002220129. The next prime is 15320002220191. The reversal of 15320002220131 is 13102220002351.

It is not a de Polignac number, because 15320002220131 - 2¹ = 15320002220129 is a prime.

It is a super-2 number, since 2×15320002220131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15320002220191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6279126 + ... + 8370628.

It is an arithmetic number, because the mean of its divisors is an integer number (1096859991744).

Almost surely, 2^{15320002220131} is an apocalyptic number.

15320002220131 is a deficient number, since it is larger than the sum of its proper divisors (2229757647773).

15320002220131 is a wasteful number, since it uses less digits than its factorization.

15320002220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093970.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 15320002220131 its reverse (13102220002351), we get a palindrome (28422222222482).

It can be divided in two parts, 15320002220 and 131, that added together give a palindrome (15320002351).

The spelling of 15320002220131 in words is "fifteen trillion, three hundred twenty billion, two million, two hundred twenty thousand, one hundred thirty-one".