402321010031 has 2 divisors, whose sum is σ = 402321010032. Its totient is φ = 402321010030.

The previous prime is 402321009947. The next prime is 402321010051. The reversal of 402321010031 is 130010123204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402321010031 - 2¹⁴ = 402320993647 is a prime.

It is a super-2 number, since 2×402321010031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402321009991 and 402321010009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402321010051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201160505015 + 201160505016.

It is an arithmetic number, because the mean of its divisors is an integer number (201160505016).

Almost surely, 2^402321010031 is an apocalyptic number.

402321010031 is a deficient number, since it is larger than the sum of its proper divisors (1).

402321010031 is an equidigital number, since it uses as much as digits as its factorization.

402321010031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 402321010031 its reverse (130010123204), we get a palindrome (532331133235).

The spelling of 402321010031 in words is "four hundred two billion, three hundred twenty-one million, ten thousand, thirty-one".