11231201000 has 32 divisors (see below), whose sum is σ = 26281012680. Its totient is φ = 4492480000.

The previous prime is 11231200987. The next prime is 11231201041. The reversal of 11231201000 is 10213211.

It can be written as a sum of positive squares in 4 ways, for example, as 1576566436 + 9654634564 = 39706^2 + 98258^2 .

It is a super-2 number, since 2×11231201000² (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 7 ways as a sum of consecutive naturals, for example, 5614601 + ... + 5616600.

Almost surely, 2^11231201000 is an apocalyptic number.

11231201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231201000 is an abundant number, since it is smaller than the sum of its proper divisors (15049811680).

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

11231201000 is a wasteful number, since it uses less digits than its factorization.

11231201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11231222 (or 11231208 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11231201000 its reverse (10213211), we get a palindrome (11241414211).

The spelling of 11231201000 in words is "eleven billion, two hundred thirty-one million, two hundred one thousand".