2194690134123 has 24 divisors (see below), whose sum is σ = 3172717416960. Its totient is φ = 1461922870320.

The previous prime is 2194690134103. The next prime is 2194690134139. The reversal of 2194690134123 is 3214310964912.

2194690134123 is a `hidden beast` number, since 219 + 4 + 6 + 9 + 0 + 13 + 412 + 3 = 666.

It is not a de Polignac number, because 2194690134123 - 2⁶ = 2194690134059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2194690134103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65032188 + ... + 65065926.

It is an arithmetic number, because the mean of its divisors is an integer number (132196559040).

Almost surely, 2^{2194690134123} is an apocalyptic number.

2194690134123 is a deficient number, since it is larger than the sum of its proper divisors (978027282837).

2194690134123 is a wasteful number, since it uses less digits than its factorization.

2194690134123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39479 (or 39476 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 2194690134123 in words is "two trillion, one hundred ninety-four billion, six hundred ninety million, one hundred thirty-four thousand, one hundred twenty-three".