11322631590 has 128 divisors (see below), whose sum is σ = 29619717120. Its totient is φ = 2762039808.

The previous prime is 11322631547. The next prime is 11322631591. The reversal of 11322631590 is 9513622311.

11322631590 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11322631590² (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 (11322631591) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1502512 + ... + 1510028.

It is an arithmetic number, because the mean of its divisors is an integer number (231404040).

Almost surely, 2^11322631590 is an apocalyptic number.

11322631590 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 11322631590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14809858560).

11322631590 is an abundant number, since it is smaller than the sum of its proper divisors (18297085530).

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

11322631590 is a wasteful number, since it uses less digits than its factorization.

11322631590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7646.

The product of its (nonzero) digits is 9720, while the sum is 33.

The spelling of 11322631590 in words is "eleven billion, three hundred twenty-two million, six hundred thirty-one thousand, five hundred ninety".