11051431332 has 48 divisors (see below), whose sum is σ = 27367103232. Its totient is φ = 3459043840.

The previous prime is 11051431319. The next prime is 11051431351. The reversal of 11051431332 is 23313415011.

It is a super-2 number, since 2×11051431332² (a number of 21 digits) contains 22 as substring.

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, 25078 + ... + 150770.

It is an arithmetic number, because the mean of its divisors is an integer number (570147984).

Almost surely, 2^11051431332 is an apocalyptic number.

11051431332 is a gapful number since it is divisible by the number (12) 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 11051431332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13683551616).

11051431332 is an abundant number, since it is smaller than the sum of its proper divisors (16315671900).

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

11051431332 is a wasteful number, since it uses less digits than its factorization.

11051431332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126148 (or 126146 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 11051431332 its reverse (23313415011), we get a palindrome (34364846343).

The spelling of 11051431332 in words is "eleven billion, fifty-one million, four hundred thirty-one thousand, three hundred thirty-two".