402012131313 has 32 divisors (see below), whose sum is σ = 607687234560. Its totient is φ = 234349243200.

The previous prime is 402012131267. The next prime is 402012131347. The reversal of 402012131313 is 313131210204.

It is not a de Polignac number, because 402012131313 - 2¹⁷ = 402012000241 is a prime.

It is a super-2 number, since 2×402012131313² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402012131313.

It is not an unprimeable number, because it can be changed into a prime (402012131113) 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 31 ways as a sum of consecutive naturals, for example, 10980388 + ... + 11016938.

It is an arithmetic number, because the mean of its divisors is an integer number (18990226080).

Almost surely, 2^402012131313 is an apocalyptic number.

It is an amenable number.

402012131313 is a deficient number, since it is larger than the sum of its proper divisors (205675103247).

402012131313 is a wasteful number, since it uses less digits than its factorization.

402012131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51429.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 402012131313 its reverse (313131210204), we get a palindrome (715143341517).

The spelling of 402012131313 in words is "four hundred two billion, twelve million, one hundred thirty-one thousand, three hundred thirteen".