11323122990 has 64 divisors (see below), whose sum is σ = 27820288512. Its totient is φ = 2948400000.

The previous prime is 11323122949. The next prime is 11323122991. The reversal of 11323122990 is 9922132311.

It is a super-2 number, since 2×11323122990² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11323122991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318615 + ... + 352365.

It is an arithmetic number, because the mean of its divisors is an integer number (434692008).

Almost surely, 2^11323122990 is an apocalyptic number.

11323122990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11323122990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13910144256).

11323122990 is an abundant number, since it is smaller than the sum of its proper divisors (16497165522).

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

11323122990 is a wasteful number, since it uses less digits than its factorization.

11323122990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34025.

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 11323122990 in words is "eleven billion, three hundred twenty-three million, one hundred twenty-two thousand, nine hundred ninety".