31406122430 has 32 divisors (see below), whose sum is σ = 57319142400. Its totient is φ = 12388334112.

The previous prime is 31406122421. The next prime is 31406122459. The reversal of 31406122430 is 3422160413.

It is a self number, because there is not a number n which added to its sum of digits gives 31406122430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182381 + ... + 309959.

It is an arithmetic number, because the mean of its divisors is an integer number (1791223200).

Almost surely, 2^31406122430 is an apocalyptic number.

31406122430 is a deficient number, since it is larger than the sum of its proper divisors (25913019970).

31406122430 is a wasteful number, since it uses less digits than its factorization.

31406122430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127928.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31406122430 its reverse (3422160413), we get a palindrome (34828282843).

The spelling of 31406122430 in words is "thirty-one billion, four hundred six million, one hundred twenty-two thousand, four hundred thirty".