2123121233031 has 8 divisors (see below), whose sum is σ = 2831291418480. Its totient is φ = 1415182601472.

The previous prime is 2123121233027. The next prime is 2123121233033. The reversal of 2123121233031 is 1303321213212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2123121233031 - 2² = 2123121233027 is a prime.

It is a super-2 number, since 2×2123121233031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2123121232992 and 2123121233010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123121233033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57867076 + ... + 57903753.

It is an arithmetic number, because the mean of its divisors is an integer number (353911427310).

Almost surely, 2^{2123121233031} is an apocalyptic number.

2123121233031 is a deficient number, since it is larger than the sum of its proper divisors (708170185449).

2123121233031 is a wasteful number, since it uses less digits than its factorization.

2123121233031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115776945.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2123121233031 its reverse (1303321213212), we get a palindrome (3426442446243).

The spelling of 2123121233031 in words is "two trillion, one hundred twenty-three billion, one hundred twenty-one million, two hundred thirty-three thousand, thirty-one".