31356605343 has 8 divisors (see below), whose sum is σ = 47781493888. Its totient is φ = 17918060184.

The previous prime is 31356605321. The next prime is 31356605363. The reversal of 31356605343 is 34350665313.

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

It is not a de Polignac number, because 31356605343 - 2⁵ = 31356605311 is a prime.

It is a super-2 number, since 2×31356605343² (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 (31356605363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746585821 + ... + 746585862.

It is an arithmetic number, because the mean of its divisors is an integer number (5972686736).

Almost surely, 2^31356605343 is an apocalyptic number.

31356605343 is a deficient number, since it is larger than the sum of its proper divisors (16424888545).

31356605343 is a wasteful number, since it uses less digits than its factorization.

31356605343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493171693.

The product of its (nonzero) digits is 291600, while the sum is 39.

The spelling of 31356605343 in words is "thirty-one billion, three hundred fifty-six million, six hundred five thousand, three hundred forty-three".