61031169723 has 16 divisors (see below), whose sum is σ = 81890900000. Its totient is φ = 40429808640.

The previous prime is 61031169709. The next prime is 61031169757. The reversal of 61031169723 is 32796113016.

It is not a de Polignac number, because 61031169723 - 2⁸ = 61031169467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61031169763) 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, 633213 + ... + 723201.

It is an arithmetic number, because the mean of its divisors is an integer number (5118181250).

Almost surely, 2^61031169723 is an apocalyptic number.

61031169723 is a deficient number, since it is larger than the sum of its proper divisors (20859730277).

61031169723 is a wasteful number, since it uses less digits than its factorization.

61031169723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91422.

The product of its (nonzero) digits is 40824, while the sum is 39.

The spelling of 61031169723 in words is "sixty-one billion, thirty-one million, one hundred sixty-nine thousand, seven hundred twenty-three".