31213044067 has 8 divisors (see below), whose sum is σ = 33394457360. Its totient is φ = 29085492960.

The previous prime is 31213044053. The next prime is 31213044073. The reversal of 31213044067 is 76044031213.

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

It is a de Polignac number, because none of the positive numbers 2^k-31213044067 is a prime.

It is a super-3 number, since 3×31213044067³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31213044767) 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, 13464348 + ... + 13466665.

It is an arithmetic number, because the mean of its divisors is an integer number (4174307170).

Almost surely, 2^31213044067 is an apocalyptic number.

31213044067 is a deficient number, since it is larger than the sum of its proper divisors (2181413293).

31213044067 is a wasteful number, since it uses less digits than its factorization.

31213044067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26931093.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 31213044067 in words is "thirty-one billion, two hundred thirteen million, forty-four thousand, sixty-seven".