31346648623 has 4 divisors (see below), whose sum is σ = 31354969360. Its totient is φ = 31338327888.

The previous prime is 31346648621. The next prime is 31346648629. The reversal of 31346648623 is 32684664313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32684664313 = 7 ⋅4669237759.

It is a cyclic number.

It is not a de Polignac number, because 31346648623 - 2¹ = 31346648621 is a prime.

It is a super-2 number, since 2×31346648623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31346648621) 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, 4154715 + ... + 4162252.

It is an arithmetic number, because the mean of its divisors is an integer number (7838742340).

Almost surely, 2^31346648623 is an apocalyptic number.

31346648623 is a deficient number, since it is larger than the sum of its proper divisors (8320737).

31346648623 is an equidigital number, since it uses as much as digits as its factorization.

31346648623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8320736.

The product of its digits is 1492992, while the sum is 46.

The spelling of 31346648623 in words is "thirty-one billion, three hundred forty-six million, six hundred forty-eight thousand, six hundred twenty-three".