123400202200279 has 2 divisors, whose sum is σ = 123400202200280. Its totient is φ = 123400202200278.

The previous prime is 123400202200267. The next prime is 123400202200343. The reversal of 123400202200279 is 972002202004321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123400202200279 - 2¹⁵ = 123400202167511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123400202209279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61700101100139 + 61700101100140.

It is an arithmetic number, because the mean of its divisors is an integer number (61700101100140).

Almost surely, 2^{123400202200279} is an apocalyptic number.

123400202200279 is a deficient number, since it is larger than the sum of its proper divisors (1).

123400202200279 is an equidigital number, since it uses as much as digits as its factorization.

123400202200279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 123400202200279 in words is "one hundred twenty-three trillion, four hundred billion, two hundred two million, two hundred thousand, two hundred seventy-nine".