31453442116531 has 16 divisors (see below), whose sum is σ = 33377200437600. Its totient is φ = 29537890195968.

The previous prime is 31453442116529. The next prime is 31453442116553. The reversal of 31453442116531 is 13561124435413.

It is not a de Polignac number, because 31453442116531 - 2¹ = 31453442116529 is a prime.

It is a super-2 number, since 2×31453442116531² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31453442116331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29609665 + ... + 30653533.

It is an arithmetic number, because the mean of its divisors is an integer number (2086075027350).

Almost surely, 2^{31453442116531} is an apocalyptic number.

31453442116531 is a deficient number, since it is larger than the sum of its proper divisors (1923758321069).

31453442116531 is a wasteful number, since it uses less digits than its factorization.

31453442116531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047798.

The product of its digits is 518400, while the sum is 43.

The spelling of 31453442116531 in words is "thirty-one trillion, four hundred fifty-three billion, four hundred forty-two million, one hundred sixteen thousand, five hundred thirty-one".