402441320131 has 16 divisors (see below), whose sum is σ = 408224323584. Its totient is φ = 396697561344.

The previous prime is 402441320119. The next prime is 402441320137. The reversal of 402441320131 is 131023144204.

It is a cyclic number.

It is not a de Polignac number, because 402441320131 - 2⁷ = 402441320003 is a prime.

It is a super-2 number, since 2×402441320131² (a number of 24 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 = 402441320096 and 402441320105.

It is not an unprimeable number, because it can be changed into a prime (402441320137) 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, 86302906 + ... + 86307568.

It is an arithmetic number, because the mean of its divisors is an integer number (25514020224).

Almost surely, 2^402441320131 is an apocalyptic number.

402441320131 is a deficient number, since it is larger than the sum of its proper divisors (5783003453).

402441320131 is a wasteful number, since it uses less digits than its factorization.

402441320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8610.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 402441320131 its reverse (131023144204), we get a palindrome (533464464335).

The spelling of 402441320131 in words is "four hundred two billion, four hundred forty-one million, three hundred twenty thousand, one hundred thirty-one".