123052091 has 2 divisors, whose sum is σ = 123052092. Its totient is φ = 123052090.

The previous prime is 123052057. The next prime is 123052117. The reversal of 123052091 is 190250321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123052091 is a prime.

It is not a weakly prime, because it can be changed into another prime (123052021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61526045 + 61526046.

It is an arithmetic number, because the mean of its divisors is an integer number (61526046).

Almost surely, 2^123052091 is an apocalyptic number.

123052091 is a deficient number, since it is larger than the sum of its proper divisors (1).

123052091 is an equidigital number, since it uses as much as digits as its factorization.

123052091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 123052091 is about 11092.8847014652. The cubic root of 123052091 is about 497.3891789554.

The spelling of 123052091 in words is "one hundred twenty-three million, fifty-two thousand, ninety-one".