10123121033 has 4 divisors (see below), whose sum is σ = 10123506960. Its totient is φ = 10122735108.

The previous prime is 10123120927. The next prime is 10123121111. The reversal of 10123121033 is 33012132101.

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 a de Polignac number, because none of the positive numbers 2^k-10123121033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123121233) 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, 150503 + ... + 207116.

It is an arithmetic number, because the mean of its divisors is an integer number (2530876740).

Almost surely, 2^10123121033 is an apocalyptic number.

It is an amenable number.

10123121033 is a deficient number, since it is larger than the sum of its proper divisors (385927).

10123121033 is an equidigital number, since it uses as much as digits as its factorization.

10123121033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385926.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10123121033 its reverse (33012132101), we get a palindrome (43135253134).

The spelling of 10123121033 in words is "ten billion, one hundred twenty-three million, one hundred twenty-one thousand, thirty-three".