2123021033231 has 64 divisors (see below), whose sum is σ = 2527934054400. Its totient is φ = 1745528818176.

The previous prime is 2123021033143. The next prime is 2123021033293. The reversal of 2123021033231 is 1323301203212.

It is not a de Polignac number, because 2123021033231 - 2³⁰ = 2121947291407 is a prime.

It is a super-2 number, since 2×2123021033231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123021033197 and 2123021033206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123021033531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2560941725 + ... + 2560942553.

It is an arithmetic number, because the mean of its divisors is an integer number (39498969600).

Almost surely, 2^{2123021033231} is an apocalyptic number.

2123021033231 is a deficient number, since it is larger than the sum of its proper divisors (404913021169).

2123021033231 is a wasteful number, since it uses less digits than its factorization.

2123021033231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2123021033231 its reverse (1323301203212), we get a palindrome (3446322236443).

The spelling of 2123021033231 in words is "two trillion, one hundred twenty-three billion, twenty-one million, thirty-three thousand, two hundred thirty-one".