133031113021 has 4 divisors (see below), whose sum is σ = 133032649792. Its totient is φ = 133029576252.

The previous prime is 133031113009. The next prime is 133031113027. The reversal of 133031113021 is 120311130331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133031113021 - 2³³ = 124441178429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133031113021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031113027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630261 + ... + 814426.

It is an arithmetic number, because the mean of its divisors is an integer number (33258162448).

Almost surely, 2^133031113021 is an apocalyptic number.

It is an amenable number.

133031113021 is a deficient number, since it is larger than the sum of its proper divisors (1536771).

133031113021 is an equidigital number, since it uses as much as digits as its factorization.

133031113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536770.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 133031113021 its reverse (120311130331), we get a palindrome (253342243352).

The spelling of 133031113021 in words is "one hundred thirty-three billion, thirty-one million, one hundred thirteen thousand, twenty-one".