123132300091 has 2 divisors, whose sum is σ = 123132300092. Its totient is φ = 123132300090.

The previous prime is 123132300089. The next prime is 123132300119. The reversal of 123132300091 is 190003231321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123132300091 - 2¹ = 123132300089 is a prime.

Together with 123132300089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (123132300001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61566150045 + 61566150046.

It is an arithmetic number, because the mean of its divisors is an integer number (61566150046).

Almost surely, 2^123132300091 is an apocalyptic number.

123132300091 is a deficient number, since it is larger than the sum of its proper divisors (1).

123132300091 is an equidigital number, since it uses as much as digits as its factorization.

123132300091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 123132300091 in words is "one hundred twenty-three billion, one hundred thirty-two million, three hundred thousand, ninety-one".