31004640043 has 8 divisors (see below), whose sum is σ = 33391794128. Its totient is φ = 28617797664.

The previous prime is 31004640019. The next prime is 31004640047. The reversal of 31004640043 is 34004640013.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31004640043 - 2²⁵ = 30971085611 is a prime.

It is a super-2 number, since 2×31004640043² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31004640047) 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, 154321 + ... + 292957.

It is an arithmetic number, because the mean of its divisors is an integer number (4173974266).

Almost surely, 2^31004640043 is an apocalyptic number.

31004640043 is a deficient number, since it is larger than the sum of its proper divisors (2387154085).

31004640043 is a wasteful number, since it uses less digits than its factorization.

31004640043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155853.

The product of its (nonzero) digits is 3456, while the sum is 25.

The spelling of 31004640043 in words is "thirty-one billion, four million, six hundred forty thousand, forty-three".