31356254516109 has 8 divisors (see below), whose sum is σ = 42516955276320. Its totient is φ = 20549861716656.

The previous prime is 31356254516021. The next prime is 31356254516123. The reversal of 31356254516109 is 90161545265313.

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

It is not a de Polignac number, because 31356254516109 - 2⁷ = 31356254515981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31356254516149) 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, 88576989982 + ... + 88576990335.

It is an arithmetic number, because the mean of its divisors is an integer number (5314619409540).

Almost surely, 2^{31356254516109} is an apocalyptic number.

It is an amenable number.

31356254516109 is a deficient number, since it is larger than the sum of its proper divisors (11160700760211).

31356254516109 is a wasteful number, since it uses less digits than its factorization.

31356254516109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177153980379.

The product of its (nonzero) digits is 2916000, while the sum is 51.

The spelling of 31356254516109 in words is "thirty-one trillion, three hundred fifty-six billion, two hundred fifty-four million, five hundred sixteen thousand, one hundred nine".