31421030444123 has 2 divisors, whose sum is σ = 31421030444124. Its totient is φ = 31421030444122.

The previous prime is 31421030444107. The next prime is 31421030444179. The reversal of 31421030444123 is 32144403012413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31421030444123 - 2⁴ = 31421030444107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31421030444123.

It is not a weakly prime, because it can be changed into another prime (31421030144123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15710515222061 + 15710515222062.

It is an arithmetic number, because the mean of its divisors is an integer number (15710515222062).

Almost surely, 2^{31421030444123} is an apocalyptic number.

31421030444123 is a deficient number, since it is larger than the sum of its proper divisors (1).

31421030444123 is an equidigital number, since it uses as much as digits as its factorization.

31421030444123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 31421030444123 its reverse (32144403012413), we get a palindrome (63565433456536).

The spelling of 31421030444123 in words is "thirty-one trillion, four hundred twenty-one billion, thirty million, four hundred forty-four thousand, one hundred twenty-three".