31420506140023 has 48 divisors (see below), whose sum is σ = 43308583149888. Its totient is φ = 22173745651200.

The previous prime is 31420506140011. The next prime is 31420506140039. The reversal of 31420506140023 is 32004160502413.

It is not a de Polignac number, because 31420506140023 - 2⁹ = 31420506139511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420506140083) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26336758 + ... + 27503923.

It is an arithmetic number, because the mean of its divisors is an integer number (902262148956).

Almost surely, 2^{31420506140023} is an apocalyptic number.

31420506140023 is a deficient number, since it is larger than the sum of its proper divisors (11888077009865).

31420506140023 is a wasteful number, since it uses less digits than its factorization.

31420506140023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53840776 (or 53840765 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 31420506140023 its reverse (32004160502413), we get a palindrome (63424666642436).

The spelling of 31420506140023 in words is "thirty-one trillion, four hundred twenty billion, five hundred six million, one hundred forty thousand, twenty-three".