31903190473 has 16 divisors (see below), whose sum is σ = 40169232000. Its totient is φ = 24613488000.

The previous prime is 31903190441. The next prime is 31903190483. The reversal of 31903190473 is 37409130913.

It is a cyclic number.

It is not a de Polignac number, because 31903190473 - 2⁵ = 31903190441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31903190483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2043348 + ... + 2058901.

It is an arithmetic number, because the mean of its divisors is an integer number (2510577000).

Almost surely, 2^31903190473 is an apocalyptic number.

It is an amenable number.

31903190473 is a deficient number, since it is larger than the sum of its proper divisors (8266041527).

31903190473 is a wasteful number, since it uses less digits than its factorization.

31903190473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102368.

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

The spelling of 31903190473 in words is "thirty-one billion, nine hundred three million, one hundred ninety thousand, four hundred seventy-three".