31423202001 has 24 divisors (see below), whose sum is σ = 46851124320. Its totient is φ = 20281809600.

The previous prime is 31423201991. The next prime is 31423202009. The reversal of 31423202001 is 10020232413.

31423202001 is a `hidden beast` number, since 3 + 142 + 320 + 200 + 1 = 666.

It is not a de Polignac number, because 31423202001 - 2²³ = 31414813393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31423202009) 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, 276691 + ... + 373368.

It is an arithmetic number, because the mean of its divisors is an integer number (1952130180).

Almost surely, 2^31423202001 is an apocalyptic number.

It is an amenable number.

31423202001 is a deficient number, since it is larger than the sum of its proper divisors (15427922319).

31423202001 is a wasteful number, since it uses less digits than its factorization.

31423202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650237 (or 650234 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31423202001 its reverse (10020232413), we get a palindrome (41443434414).

The spelling of 31423202001 in words is "thirty-one billion, four hundred twenty-three million, two hundred two thousand, one".