122031001091 has 2 divisors, whose sum is σ = 122031001092. Its totient is φ = 122031001090.

The previous prime is 122031000991. The next prime is 122031001109. The reversal of 122031001091 is 190100130221.

Together with next prime (122031001109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122031001091 - 2¹⁰ = 122031000067 is a prime.

It is not a weakly prime, because it can be changed into another prime (122031003091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61015500545 + 61015500546.

It is an arithmetic number, because the mean of its divisors is an integer number (61015500546).

Almost surely, 2^122031001091 is an apocalyptic number.

122031001091 is a deficient number, since it is larger than the sum of its proper divisors (1).

122031001091 is an equidigital number, since it uses as much as digits as its factorization.

122031001091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 122031001091 in words is "one hundred twenty-two billion, thirty-one million, one thousand, ninety-one".