3100045091981 has 8 divisors (see below), whose sum is σ = 3288115327200. Its totient is φ = 2914465853520.

The previous prime is 3100045091971. The next prime is 3100045091987. The reversal of 3100045091981 is 1891905400013.

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

It is a cyclic number.

It is not a de Polignac number, because 3100045091981 - 2³⁴ = 3082865222797 is a prime.

It is a super-2 number, since 2×3100045091981² (a number of 26 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 (3100045091987) 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, 622746626 + ... + 622751603.

It is an arithmetic number, because the mean of its divisors is an integer number (411014415900).

Almost surely, 2^{3100045091981} is an apocalyptic number.

It is an amenable number.

3100045091981 is a deficient number, since it is larger than the sum of its proper divisors (188070235219).

3100045091981 is a wasteful number, since it uses less digits than its factorization.

3100045091981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245498379.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 3100045091981 in words is "three trillion, one hundred billion, forty-five million, ninety-one thousand, nine hundred eighty-one".