921121031233033 has 4 divisors (see below), whose sum is σ = 921123785202048. Its totient is φ = 921118277264020.

The previous prime is 921121031233003. The next prime is 921121031233099. The reversal of 921121031233033 is 330332130121129.

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 921121031233033 - 2²⁵ = 921120997678601 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 921121031233033.

It is not an unprimeable number, because it can be changed into a prime (921121031233003) 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, 1376482741 + ... + 1377151762.

It is an arithmetic number, because the mean of its divisors is an integer number (230280946300512).

Almost surely, 2^{921121031233033} is an apocalyptic number.

It is an amenable number.

921121031233033 is a deficient number, since it is larger than the sum of its proper divisors (2753969015).

921121031233033 is a wasteful number, since it uses less digits than its factorization.

921121031233033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753969014.

The product of its (nonzero) digits is 17496, while the sum is 34.

The spelling of 921121031233033 in words is "nine hundred twenty-one trillion, one hundred twenty-one billion, thirty-one million, two hundred thirty-three thousand, thirty-three".