402020422131 has 8 divisors (see below), whose sum is σ = 536033217744. Its totient is φ = 268010620640.

The previous prime is 402020422127. The next prime is 402020422151. The reversal of 402020422131 is 131224020204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402020422131 - 2² = 402020422127 is a prime.

It is a super-2 number, since 2×402020422131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402020422098 and 402020422107.

It is not an unprimeable number, because it can be changed into a prime (402020422151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413856 + ... + 987581.

It is an arithmetic number, because the mean of its divisors is an integer number (67004152218).

Almost surely, 2^402020422131 is an apocalyptic number.

402020422131 is a deficient number, since it is larger than the sum of its proper divisors (134012795613).

402020422131 is a wasteful number, since it uses less digits than its factorization.

402020422131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497061.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 402020422131 its reverse (131224020204), we get a palindrome (533244442335).

The spelling of 402020422131 in words is "four hundred two billion, twenty million, four hundred twenty-two thousand, one hundred thirty-one".