2123000120231 has 4 divisors (see below), whose sum is σ = 2123387605200. Its totient is φ = 2122612635264.

The previous prime is 2123000120209. The next prime is 2123000120237. The reversal of 2123000120231 is 1320210003212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2123000120231 - 2¹⁸ = 2122999858087 is a prime.

It is a super-2 number, since 2×2123000120231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123000120237) 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, 193734266 + ... + 193745223.

It is an arithmetic number, because the mean of its divisors is an integer number (530846901300).

Almost surely, 2^{2123000120231} is an apocalyptic number.

2123000120231 is a deficient number, since it is larger than the sum of its proper divisors (387484969).

2123000120231 is an equidigital number, since it uses as much as digits as its factorization.

2123000120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387484968.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2123000120231 its reverse (1320210003212), we get a palindrome (3443210123443).

The spelling of 2123000120231 in words is "two trillion, one hundred twenty-three billion, one hundred twenty thousand, two hundred thirty-one".