31405540501201 has 4 divisors (see below), whose sum is σ = 31516514142832. Its totient is φ = 31294566859572.

The previous prime is 31405540501163. The next prime is 31405540501207. The reversal of 31405540501201 is 10210504550413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31405540501201 - 2¹³ = 31405540493009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31405540501207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55486820391 + ... + 55486820956.

It is an arithmetic number, because the mean of its divisors is an integer number (7879128535708).

Almost surely, 2^{31405540501201} is an apocalyptic number.

It is an amenable number.

31405540501201 is a deficient number, since it is larger than the sum of its proper divisors (110973641631).

31405540501201 is a wasteful number, since it uses less digits than its factorization.

31405540501201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110973641630.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 31405540501201 in words is "thirty-one trillion, four hundred five billion, five hundred forty million, five hundred one thousand, two hundred one".