20322231499 has 2 divisors, whose sum is σ = 20322231500. Its totient is φ = 20322231498.

The previous prime is 20322231491. The next prime is 20322231569. The reversal of 20322231499 is 99413222302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20322231499 - 2³ = 20322231491 is a prime.

It is not a weakly prime, because it can be changed into another prime (20322231491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161115749 + 10161115750.

It is an arithmetic number, because the mean of its divisors is an integer number (10161115750).

Almost surely, 2^20322231499 is an apocalyptic number.

20322231499 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322231499 is an equidigital number, since it uses as much as digits as its factorization.

20322231499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 20322231499 in words is "twenty billion, three hundred twenty-two million, two hundred thirty-one thousand, four hundred ninety-nine".