31300042919 has 4 divisors (see below), whose sum is σ = 31303370496. Its totient is φ = 31296715344.

The previous prime is 31300042883. The next prime is 31300042957. The reversal of 31300042919 is 91924000313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31300042919 - 2²⁴ = 31283265703 is a prime.

It is a super-2 number, since 2×31300042919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300048919) 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, 1649639 + ... + 1668504.

It is an arithmetic number, because the mean of its divisors is an integer number (7825842624).

Almost surely, 2^31300042919 is an apocalyptic number.

31300042919 is a deficient number, since it is larger than the sum of its proper divisors (3327577).

31300042919 is an equidigital number, since it uses as much as digits as its factorization.

31300042919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327576.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 31300042919 in words is "thirty-one billion, three hundred million, forty-two thousand, nine hundred nineteen".