1100021133231 has 32 divisors (see below), whose sum is σ = 1653850129920. Its totient is φ = 722484971712.

The previous prime is 1100021133229. The next prime is 1100021133251. The reversal of 1100021133231 is 1323311200011.

It is not a de Polignac number, because 1100021133231 - 2¹ = 1100021133229 is a prime.

It is a super-2 number, since 2×1100021133231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100021133251) 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, 1433676 + ... + 2062878.

It is an arithmetic number, because the mean of its divisors is an integer number (51682816560).

Almost surely, 2^{1100021133231} is an apocalyptic number.

1100021133231 is a deficient number, since it is larger than the sum of its proper divisors (553828996689).

1100021133231 is an equidigital number, since it uses as much as digits as its factorization.

1100021133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630172 (or 630166 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1100021133231 its reverse (1323311200011), we get a palindrome (2423332333242).

The spelling of 1100021133231 in words is "one trillion, one hundred billion, twenty-one million, one hundred thirty-three thousand, two hundred thirty-one".