31402102401 has 12 divisors (see below), whose sum is σ = 45460987728. Its totient is φ = 20887475544.

The previous prime is 31402102399. The next prime is 31402102421. The reversal of 31402102401 is 10420120413.

It is not a de Polignac number, because 31402102401 - 2¹ = 31402102399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31402102421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3934075 + ... + 3942048.

It is an arithmetic number, because the mean of its divisors is an integer number (3788415644).

Almost surely, 2^31402102401 is an apocalyptic number.

It is an amenable number.

31402102401 is a deficient number, since it is larger than the sum of its proper divisors (14058885327).

31402102401 is a wasteful number, since it uses less digits than its factorization.

31402102401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7876572 (or 7876569 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 31402102401 its reverse (10420120413), we get a palindrome (41822222814).

The spelling of 31402102401 in words is "thirty-one billion, four hundred two million, one hundred two thousand, four hundred one".