61313231318 has 8 divisors (see below), whose sum is σ = 95968536048. Its totient is φ = 29323719304.

The previous prime is 61313231311. The next prime is 61313231351. The reversal of 61313231318 is 81313231316.

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

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666448121 + ... + 666448212.

It is an arithmetic number, because the mean of its divisors is an integer number (11996067006).

Almost surely, 2^61313231318 is an apocalyptic number.

61313231318 is a deficient number, since it is larger than the sum of its proper divisors (34655304730).

61313231318 is a wasteful number, since it uses less digits than its factorization.

61313231318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332896358.

The product of its digits is 7776, while the sum is 32.

The spelling of 61313231318 in words is "sixty-one billion, three hundred thirteen million, two hundred thirty-one thousand, three hundred eighteen".