402020301312131 has 32 divisors (see below), whose sum is σ = 416969943257088. Its totient is φ = 387386641002240.

The previous prime is 402020301312083. The next prime is 402020301312167. The reversal of 402020301312131 is 131213103020204.

It is a cyclic number.

It is not a de Polignac number, because 402020301312131 - 2³⁸ = 401745423405187 is a prime.

It is a super-2 number, since 2×402020301312131² (a number of 30 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 = 402020301312097 and 402020301312106.

It is not an unprimeable number, because it can be changed into a prime (402020301318131) 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 31 ways as a sum of consecutive naturals, for example, 745307330 + ... + 745846536.

It is an arithmetic number, because the mean of its divisors is an integer number (13030310726784).

Almost surely, 2^{402020301312131} is an apocalyptic number.

402020301312131 is a deficient number, since it is larger than the sum of its proper divisors (14949641944957).

402020301312131 is a wasteful number, since it uses less digits than its factorization.

402020301312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540251.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 402020301312131 its reverse (131213103020204), we get a palindrome (533233404332335).

The spelling of 402020301312131 in words is "four hundred two trillion, twenty billion, three hundred one million, three hundred twelve thousand, one hundred thirty-one".