1131132201021 has 32 divisors (see below), whose sum is σ = 1699613245440. Its totient is φ = 743353556400.

The previous prime is 1131132201013. The next prime is 1131132201047. The reversal of 1131132201021 is 1201022311311.

1131132201021 is a `hidden beast` number, since 1 + 1 + 311 + 322 + 0 + 10 + 21 = 666.

It is not a de Polignac number, because 1131132201021 - 2³ = 1131132201013 is a prime.

It is a super-2 number, since 2×1131132201021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131132200985 and 1131132201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131132201011) 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, 13574916 + ... + 13657986.

It is an arithmetic number, because the mean of its divisors is an integer number (53112913920).

Almost surely, 2^{1131132201021} is an apocalyptic number.

It is an amenable number.

1131132201021 is a deficient number, since it is larger than the sum of its proper divisors (568481044419).

1131132201021 is an equidigital number, since it uses as much as digits as its factorization.

1131132201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90254 (or 90248 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1131132201021 its reverse (1201022311311), we get a palindrome (2332154512332).

The spelling of 1131132201021 in words is "one trillion, one hundred thirty-one billion, one hundred thirty-two million, two hundred one thousand, twenty-one".