11311290193880 has 64 divisors (see below), whose sum is σ = 26082987184800. Its totient is φ = 4412156912640.

The previous prime is 11311290193867. The next prime is 11311290193933. The reversal of 11311290193880 is 8839109211311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2047526 + ... + 5178314.

Almost surely, 2^{11311290193880} is an apocalyptic number.

11311290193880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11311290193880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13041493592400).

11311290193880 is an abundant number, since it is smaller than the sum of its proper divisors (14771696990920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11311290193880 is a wasteful number, since it uses less digits than its factorization.

11311290193880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133044 (or 3133040 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 47.

The spelling of 11311290193880 in words is "eleven trillion, three hundred eleven billion, two hundred ninety million, one hundred ninety-three thousand, eight hundred eighty".