2123133034420 has 12 divisors (see below), whose sum is σ = 4458579372324. Its totient is φ = 849253213760.

The previous prime is 2123133034361. The next prime is 2123133034433. The reversal of 2123133034420 is 244303313212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 237202117156 + 1885930917264 = 487034^2 + 1373292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53078325841 + ... + 53078325880.

It is an arithmetic number, because the mean of its divisors is an integer number (371548281027).

Almost surely, 2^{2123133034420} is an apocalyptic number.

2123133034420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123133034420 is an abundant number, since it is smaller than the sum of its proper divisors (2335446337904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123133034420 is a wasteful number, since it uses less digits than its factorization.

2123133034420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106156651730 (or 106156651728 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 2123133034420 its reverse (244303313212), we get a palindrome (2367436347632).

The spelling of 2123133034420 in words is "two trillion, one hundred twenty-three billion, one hundred thirty-three million, thirty-four thousand, four hundred twenty".