31677345343 has 4 divisors (see below), whose sum is σ = 36202680400. Its totient is φ = 27152010288.

The previous prime is 31677345253. The next prime is 31677345361. The reversal of 31677345343 is 34354377613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34354377613 = 41333 ⋅831161.

It is a cyclic number.

It is not a de Polignac number, because 31677345343 - 2²¹ = 31675248191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31677345293 and 31677345302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31677345373) 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, 2262667518 + ... + 2262667531.

It is an arithmetic number, because the mean of its divisors is an integer number (9050670100).

Almost surely, 2^31677345343 is an apocalyptic number.

31677345343 is a deficient number, since it is larger than the sum of its proper divisors (4525335057).

31677345343 is an equidigital number, since it uses as much as digits as its factorization.

31677345343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525335056.

The product of its digits is 1905120, while the sum is 46.

The spelling of 31677345343 in words is "thirty-one billion, six hundred seventy-seven million, three hundred forty-five thousand, three hundred forty-three".