31345120419 has 8 divisors (see below), whose sum is σ = 41919759552. Its totient is φ = 20833614120.

The previous prime is 31345120381. The next prime is 31345120481. The reversal of 31345120419 is 91402154313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31345120419 - 2¹² = 31345116323 is a prime.

It is a super-2 number, since 2×31345120419² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31345120419.

It is not an unprimeable number, because it can be changed into a prime (31345120619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15782049 + ... + 15784034.

It is an arithmetic number, because the mean of its divisors is an integer number (5239969944).

Almost surely, 2^31345120419 is an apocalyptic number.

31345120419 is a deficient number, since it is larger than the sum of its proper divisors (10574639133).

31345120419 is a wasteful number, since it uses less digits than its factorization.

31345120419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31566417.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 31345120419 in words is "thirty-one billion, three hundred forty-five million, one hundred twenty thousand, four hundred nineteen".