61313231316 has 12 divisors (see below), whose sum is σ = 143064206432. Its totient is φ = 20437743768.

The previous prime is 61313231311. The next prime is 61313231351.

61313231316 is nontrivially palindromic in base 10.

61313231316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61313231311) 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, 2554717960 + ... + 2554717983.

Almost surely, 2^61313231316 is an apocalyptic number.

It is an amenable number.

61313231316 is an abundant number, since it is smaller than the sum of its proper divisors (81750975116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61313231316 is a wasteful number, since it uses less digits than its factorization.

61313231316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109435950 (or 5109435948 counting only the distinct ones).

The product of its digits is 5832, while the sum is 30.

The spelling of 61313231316 in words is "sixty-one billion, three hundred thirteen million, two hundred thirty-one thousand, three hundred sixteen".