31455764157101 has 4 divisors (see below), whose sum is σ = 31455999926652. Its totient is φ = 31455528387552.

The previous prime is 31455764157067. The next prime is 31455764157119. The reversal of 31455764157101 is 10175146755413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22916335984201 + 8539428172900 = 4787101^2 + 2922230^2 .

It is a cyclic number.

It is not a de Polignac number, because 31455764157101 - 2¹⁸ = 31455763894957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31455764157101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31455764157121) 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, 117684536 + ... + 117951521.

It is an arithmetic number, because the mean of its divisors is an integer number (7863999981663).

Almost surely, 2^{31455764157101} is an apocalyptic number.

It is an amenable number.

31455764157101 is a deficient number, since it is larger than the sum of its proper divisors (235769551).

31455764157101 is a wasteful number, since it uses less digits than its factorization.

31455764157101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235769550.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The spelling of 31455764157101 in words is "thirty-one trillion, four hundred fifty-five billion, seven hundred sixty-four million, one hundred fifty-seven thousand, one hundred one".