10402321540031 has 2 divisors, whose sum is σ = 10402321540032. Its totient is φ = 10402321540030.

The previous prime is 10402321540019. The next prime is 10402321540057. The reversal of 10402321540031 is 13004512320401.

It is a happy number.

It is an a-pointer prime, because the next prime (10402321540057) can be obtained adding 10402321540031 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10402321540031 - 2¹⁰ = 10402321539007 is a prime.

It is a super-2 number, since 2×10402321540031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10402321540001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201160770015 + 5201160770016.

It is an arithmetic number, because the mean of its divisors is an integer number (5201160770016).

Almost surely, 2^{10402321540031} is an apocalyptic number.

10402321540031 is a deficient number, since it is larger than the sum of its proper divisors (1).

10402321540031 is an equidigital number, since it uses as much as digits as its factorization.

10402321540031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 10402321540031 its reverse (13004512320401), we get a palindrome (23406833860432).

The spelling of 10402321540031 in words is "ten trillion, four hundred two billion, three hundred twenty-one million, five hundred forty thousand, thirty-one".