31140201208 has 8 divisors (see below), whose sum is σ = 58387877280. Its totient is φ = 15570100600.

The previous prime is 31140201187. The next prime is 31140201271. The reversal of 31140201208 is 80210204113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1946262568 + ... + 1946262583.

It is an arithmetic number, because the mean of its divisors is an integer number (7298484660).

Almost surely, 2^31140201208 is an apocalyptic number.

It is an amenable number.

31140201208 is a deficient number, since it is larger than the sum of its proper divisors (27247676072).

31140201208 is a wasteful number, since it uses less digits than its factorization.

31140201208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892525157 (or 3892525153 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The spelling of 31140201208 in words is "thirty-one billion, one hundred forty million, two hundred one thousand, two hundred eight".