1133331231021 has 16 divisors (see below), whose sum is σ = 1735243991040. Its totient is φ = 650716495920.

The previous prime is 1133331230987. The next prime is 1133331231107. The reversal of 1133331231021 is 1201321333311.

It is not a de Polignac number, because 1133331231021 - 2²² = 1133327036717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1133331230982 and 1133331231000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133331251021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903772285 + ... + 903773538.

It is an arithmetic number, because the mean of its divisors is an integer number (108452749440).

Almost surely, 2^{1133331231021} is an apocalyptic number.

1133331231021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1133331231021 is a deficient number, since it is larger than the sum of its proper divisors (601912760019).

1133331231021 is a wasteful number, since it uses less digits than its factorization.

1133331231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807545856.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1133331231021 its reverse (1201321333311), we get a palindrome (2334652564332).

The spelling of 1133331231021 in words is "one trillion, one hundred thirty-three billion, three hundred thirty-one million, two hundred thirty-one thousand, twenty-one".