11131331000 has 64 divisors (see below), whose sum is σ = 26945568000. Its totient is φ = 4298985600.

The previous prime is 11131330979. The next prime is 11131331021. The reversal of 11131331000 is 13313111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11131330979) and next prime (11131331021).

It is a super-2 number, since 2×11131331000² (a number of 21 digits) contains 22 as substring.

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, 162920 + ... + 220919.

It is an arithmetic number, because the mean of its divisors is an integer number (421024500).

Almost surely, 2^11131331000 is an apocalyptic number.

11131331000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11131331000 is an abundant number, since it is smaller than the sum of its proper divisors (15814237000).

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

11131331000 is a wasteful number, since it uses less digits than its factorization.

11131331000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383889 (or 383875 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 11131331000 its reverse (13313111), we get a palindrome (11144644111).

The spelling of 11131331000 in words is "eleven billion, one hundred thirty-one million, three hundred thirty-one thousand".