31125848419 has 4 divisors (see below), whose sum is σ = 31129090560. Its totient is φ = 31122606280.

The previous prime is 31125848363. The next prime is 31125848423. The reversal of 31125848419 is 91484852113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91484852113 = 17 ⋅5381461889.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31125848419 is a prime.

It is a super-2 number, since 2×31125848419² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31125848449) 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, 1606627 + ... + 1625884.

It is an arithmetic number, because the mean of its divisors is an integer number (7782272640).

Almost surely, 2^31125848419 is an apocalyptic number.

31125848419 is a deficient number, since it is larger than the sum of its proper divisors (3242141).

31125848419 is an equidigital number, since it uses as much as digits as its factorization.

31125848419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242140.

The product of its digits is 276480, while the sum is 46.

The spelling of 31125848419 in words is "thirty-one billion, one hundred twenty-five million, eight hundred forty-eight thousand, four hundred nineteen".