31424020401 has 8 divisors (see below), whose sum is σ = 41906545344. Its totient is φ = 20945421200.

The previous prime is 31424020391. The next prime is 31424020451. The reversal of 31424020401 is 10402042413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31424020401 - 2⁹ = 31424019889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31424020451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962706 + ... + 994811.

It is an arithmetic number, because the mean of its divisors is an integer number (5238318168).

Almost surely, 2^31424020401 is an apocalyptic number.

It is an amenable number.

31424020401 is a deficient number, since it is larger than the sum of its proper divisors (10482524943).

31424020401 is a wasteful number, since it uses less digits than its factorization.

31424020401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962871.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31424020401 its reverse (10402042413), we get a palindrome (41826062814).

The spelling of 31424020401 in words is "thirty-one billion, four hundred twenty-four million, twenty thousand, four hundred one".