31212032122099 has 2 divisors, whose sum is σ = 31212032122100. Its totient is φ = 31212032122098.

The previous prime is 31212032122091. The next prime is 31212032122157. The reversal of 31212032122099 is 99022123021213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31212032122099 - 2³ = 31212032122091 is a prime.

It is not a weakly prime, because it can be changed into another prime (31212032122091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15606016061049 + 15606016061050.

It is an arithmetic number, because the mean of its divisors is an integer number (15606016061050).

Almost surely, 2^{31212032122099} is an apocalyptic number.

31212032122099 is a deficient number, since it is larger than the sum of its proper divisors (1).

31212032122099 is an equidigital number, since it uses as much as digits as its factorization.

31212032122099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 31212032122099 in words is "thirty-one trillion, two hundred twelve billion, thirty-two million, one hundred twenty-two thousand, ninety-nine".