31140941149 has 4 divisors (see below), whose sum is σ = 32494895136. Its totient is φ = 29786987164.

The previous prime is 31140941123. The next prime is 31140941177. The reversal of 31140941149 is 94114904113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31140941149 - 2⁷ = 31140941021 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 (31140941749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676976959 + ... + 676977004.

It is an arithmetic number, because the mean of its divisors is an integer number (8123723784).

Almost surely, 2^31140941149 is an apocalyptic number.

It is an amenable number.

31140941149 is a deficient number, since it is larger than the sum of its proper divisors (1353953987).

31140941149 is a wasteful number, since it uses less digits than its factorization.

31140941149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353953986.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 31140941149 in words is "thirty-one billion, one hundred forty million, nine hundred forty-one thousand, one hundred forty-nine".