31140039973 has 8 divisors (see below), whose sum is σ = 35612466048. Its totient is φ = 26673576144.

The previous prime is 31140039971. The next prime is 31140039979. The reversal of 31140039973 is 37993004113.

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 31140039973 - 2¹ = 31140039971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31140039971) 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, 1479361 + ... + 1500262.

It is an arithmetic number, because the mean of its divisors is an integer number (4451558256).

Almost surely, 2^31140039973 is an apocalyptic number.

It is an amenable number.

31140039973 is a deficient number, since it is larger than the sum of its proper divisors (4472426075).

31140039973 is a wasteful number, since it uses less digits than its factorization.

31140039973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981123.

The product of its (nonzero) digits is 61236, while the sum is 40.

The spelling of 31140039973 in words is "thirty-one billion, one hundred forty million, thirty-nine thousand, nine hundred seventy-three".