31425255101 has 4 divisors (see below), whose sum is σ = 31427547900. Its totient is φ = 31422962304.

The previous prime is 31425255091. The next prime is 31425255133. The reversal of 31425255101 is 10155252413.

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 28518427876 + 2906827225 = 168874^2 + 53915^2 .

It is a cyclic number.

It is not a de Polignac number, because 31425255101 - 2³⁰ = 30351513277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31425255161) 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, 1125716 + ... + 1153293.

It is an arithmetic number, because the mean of its divisors is an integer number (7856886975).

Almost surely, 2^31425255101 is an apocalyptic number.

It is an amenable number.

31425255101 is a deficient number, since it is larger than the sum of its proper divisors (2292799).

31425255101 is a wasteful number, since it uses less digits than its factorization.

31425255101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292798.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 31425255101 in words is "thirty-one billion, four hundred twenty-five million, two hundred fifty-five thousand, one hundred one".