90120011207 has 2 divisors, whose sum is σ = 90120011208. Its totient is φ = 90120011206.

The previous prime is 90120011183. The next prime is 90120011249. The reversal of 90120011207 is 70211002109.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90120011207 - 2²⁰ = 90118962631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90120011287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45060005603 + 45060005604.

It is an arithmetic number, because the mean of its divisors is an integer number (45060005604).

Almost surely, 2^90120011207 is an apocalyptic number.

90120011207 is a deficient number, since it is larger than the sum of its proper divisors (1).

90120011207 is an equidigital number, since it uses as much as digits as its factorization.

90120011207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 90120011207 in words is "ninety billion, one hundred twenty million, eleven thousand, two hundred seven".