1131133002021 has 24 divisors (see below), whose sum is σ = 1887237952704. Its totient is φ = 645209554560.

The previous prime is 1131133002011. The next prime is 1131133002053. The reversal of 1131133002021 is 1202003311311.

1131133002021 is a `hidden beast` number, since 1 + 1 + 311 + 330 + 0 + 2 + 0 + 21 = 666.

It is not a de Polignac number, because 1131133002021 - 2¹⁰ = 1131133000997 is a prime.

It is a super-2 number, since 2×1131133002021² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1131133001985 and 1131133002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131133002011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336044961 + ... + 336048326.

It is an arithmetic number, because the mean of its divisors is an integer number (78634914696).

Almost surely, 2^{1131133002021} is an apocalyptic number.

1131133002021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1131133002021 is a deficient number, since it is larger than the sum of its proper divisors (756104950683).

1131133002021 is a wasteful number, since it uses less digits than its factorization.

1131133002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672093321 (or 672093318 counting only the distinct ones).

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

Adding to 1131133002021 its reverse (1202003311311), we get a palindrome (2333136313332).

The spelling of 1131133002021 in words is "one trillion, one hundred thirty-one billion, one hundred thirty-three million, two thousand, twenty-one".