31040419999 has 4 divisors (see below), whose sum is σ = 31040774640. Its totient is φ = 31040065360.

The previous prime is 31040419987. The next prime is 31040420051. The reversal of 31040419999 is 99991404013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31040419999 - 2¹³ = 31040411807 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 (31040419919) 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, 58587 + ... + 255955.

It is an arithmetic number, because the mean of its divisors is an integer number (7760193660).

Almost surely, 2^31040419999 is an apocalyptic number.

31040419999 is a deficient number, since it is larger than the sum of its proper divisors (354641).

31040419999 is a wasteful number, since it uses less digits than its factorization.

31040419999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354640.

The product of its (nonzero) digits is 314928, while the sum is 49.

The spelling of 31040419999 in words is "thirty-one billion, forty million, four hundred nineteen thousand, nine hundred ninety-nine".