1018990597121 has 16 divisors (see below), whose sum is σ = 1254361574400. Its totient is φ = 808207959888.

The previous prime is 1018990597109. The next prime is 1018990597127. The reversal of 1018990597121 is 1217950998101.

It is not a de Polignac number, because 1018990597121 - 2¹⁴ = 1018990580737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1018990597127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89082461 + ... + 89093898.

It is an arithmetic number, because the mean of its divisors is an integer number (78397598400).

Almost surely, 2^{1018990597121} is an apocalyptic number.

It is an amenable number.

1018990597121 is a deficient number, since it is larger than the sum of its proper divisors (235370977279).

1018990597121 is a wasteful number, since it uses less digits than its factorization.

1018990597121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178176428.

The product of its (nonzero) digits is 408240, while the sum is 53.

The spelling of 1018990597121 in words is "one trillion, eighteen billion, nine hundred ninety million, five hundred ninety-seven thousand, one hundred twenty-one".