2123404101234 has 64 divisors (see below), whose sum is σ = 5380571508480. Its totient is φ = 614922451200.

The previous prime is 2123404101167. The next prime is 2123404101257. The reversal of 2123404101234 is 4321014043212.

2123404101234 is a `hidden beast` number, since 2 + 1 + 23 + 404 + 1 + 0 + 1 + 234 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2123404101198 and 2123404101207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88952542 + ... + 88976409.

It is an arithmetic number, because the mean of its divisors is an integer number (84071429820).

Almost surely, 2^{2123404101234} is an apocalyptic number.

2123404101234 is an abundant number, since it is smaller than the sum of its proper divisors (3257167407246).

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

2123404101234 is a wasteful number, since it uses less digits than its factorization.

2123404101234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177928992 (or 177928986 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 2123404101234 its reverse (4321014043212), we get a palindrome (6444418144446).

The spelling of 2123404101234 in words is "two trillion, one hundred twenty-three billion, four hundred four million, one hundred one thousand, two hundred thirty-four".