31401230420421 has 24 divisors (see below), whose sum is σ = 45573828318720. Its totient is φ = 20834407776096.

The previous prime is 31401230420387. The next prime is 31401230420447. The reversal of 31401230420421 is 12402403210413.

31401230420421 is a `hidden beast` number, since 3 + 1 + 4 + 0 + 1 + 230 + 4 + 2 + 0 + 421 = 666.

It is not a de Polignac number, because 31401230420421 - 2⁷ = 31401230420293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31401230420491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5146201 + ... + 9449118.

It is an arithmetic number, because the mean of its divisors is an integer number (1898909513280).

Almost surely, 2^{31401230420421} is an apocalyptic number.

It is an amenable number.

31401230420421 is a deficient number, since it is larger than the sum of its proper divisors (14172597898299).

31401230420421 is a wasteful number, since it uses less digits than its factorization.

31401230420421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14596465 (or 14596462 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 31401230420421 its reverse (12402403210413), we get a palindrome (43803633630834).

The spelling of 31401230420421 in words is "thirty-one trillion, four hundred one billion, two hundred thirty million, four hundred twenty thousand, four hundred twenty-one".