31140434541 has 8 divisors (see below), whose sum is σ = 43705873120. Its totient is φ = 19667642832.

The previous prime is 31140434531. The next prime is 31140434543. The reversal of 31140434541 is 14543404113.

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

It is not a de Polignac number, because 31140434541 - 2⁵ = 31140434509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31140434499 and 31140434508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31140434543) 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, 273161650 + ... + 273161763.

It is an arithmetic number, because the mean of its divisors is an integer number (5463234140).

Almost surely, 2^31140434541 is an apocalyptic number.

It is an amenable number.

31140434541 is a deficient number, since it is larger than the sum of its proper divisors (12565438579).

31140434541 is a wasteful number, since it uses less digits than its factorization.

31140434541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546323435.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 31140434541 its reverse (14543404113), we get a palindrome (45683838654).

The spelling of 31140434541 in words is "thirty-one billion, one hundred forty million, four hundred thirty-four thousand, five hundred forty-one".