1373117881 has 8 divisors (see below), whose sum is σ = 1393632000. Its totient is φ = 1352682240.

The previous prime is 1373117873. The next prime is 1373117891. The reversal of 1373117881 is 1887113731.

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

It is not a de Polignac number, because 1373117881 - 2³ = 1373117873 is a prime.

It is a super-2 number, since 2×1373117881² = 3770905430243860322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1373117861) 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, 16116 + ... + 54826.

It is an arithmetic number, because the mean of its divisors is an integer number (174204000).

Almost surely, 2^1373117881 is an apocalyptic number.

It is an amenable number.

1373117881 is a deficient number, since it is larger than the sum of its proper divisors (20514119).

1373117881 is an equidigital number, since it uses as much as digits as its factorization.

1373117881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39239.

The product of its digits is 28224, while the sum is 40.

The square root of 1373117881 is about 37055.6052575046. The cubic root of 1373117881 is about 1111.4824444973.

The spelling of 1373117881 in words is "one billion, three hundred seventy-three million, one hundred seventeen thousand, eight hundred eighty-one".