61313231359 has 2 divisors, whose sum is σ = 61313231360. Its totient is φ = 61313231358.

The previous prime is 61313231351. The next prime is 61313231377. The reversal of 61313231359 is 95313231316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61313231359 - 2³ = 61313231351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61313231351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30656615679 + 30656615680.

It is an arithmetic number, because the mean of its divisors is an integer number (30656615680).

Almost surely, 2^61313231359 is an apocalyptic number.

61313231359 is a deficient number, since it is larger than the sum of its proper divisors (1).

61313231359 is an equidigital number, since it uses as much as digits as its factorization.

61313231359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 37.

The spelling of 61313231359 in words is "sixty-one billion, three hundred thirteen million, two hundred thirty-one thousand, three hundred fifty-nine".