9090870909131 has 6 divisors (see below), whose sum is σ = 9917324628132. Its totient is φ = 8264419008320.

The previous prime is 9090870909073. The next prime is 9090870909143. The reversal of 9090870909131 is 1319090780909.

It is not a de Polignac number, because 9090870909131 - 2¹⁰ = 9090870908107 is a prime.

It is a super-3 number, since 3×9090870909131³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9090870909161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9545435 + ... + 10454523.

It is an arithmetic number, because the mean of its divisors is an integer number (1652887438022).

Almost surely, 2^{9090870909131} is an apocalyptic number.

9090870909131 is a deficient number, since it is larger than the sum of its proper divisors (826453719001).

9090870909131 is an frugal number, since it uses more digits than its factorization.

9090870909131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818189 (or 909100 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 56.

It can be divided in two parts, 9090870 and 909131, that added together give a palindrome (10000001).

The spelling of 9090870909131 in words is "nine trillion, ninety billion, eight hundred seventy million, nine hundred nine thousand, one hundred thirty-one".