31140150240209 has 4 divisors (see below), whose sum is σ = 31141215144816. Its totient is φ = 31139085335604.

The previous prime is 31140150240193. The next prime is 31140150240211. The reversal of 31140150240209 is 90204205104113.

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 31140150240209 - 2⁴ = 31140150240193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31140150240239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532408439 + ... + 532466924.

It is an arithmetic number, because the mean of its divisors is an integer number (7785303786204).

Almost surely, 2^{31140150240209} is an apocalyptic number.

It is an amenable number.

31140150240209 is a deficient number, since it is larger than the sum of its proper divisors (1064904607).

31140150240209 is a wasteful number, since it uses less digits than its factorization.

31140150240209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064904606.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 31140150240209 in words is "thirty-one trillion, one hundred forty billion, one hundred fifty million, two hundred forty thousand, two hundred nine".