20032120049 has 2 divisors, whose sum is σ = 20032120050. Its totient is φ = 20032120048.

The previous prime is 20032120027. The next prime is 20032120079. The reversal of 20032120049 is 94002123002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18185871025 + 1846249024 = 134855^2 + 42968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20032120049 is a prime.

It is not a weakly prime, because it can be changed into another prime (20032120079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016060024 + 10016060025.

It is an arithmetic number, because the mean of its divisors is an integer number (10016060025).

Almost surely, 2^20032120049 is an apocalyptic number.

It is an amenable number.

20032120049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20032120049 is an equidigital number, since it uses as much as digits as its factorization.

20032120049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 20032120049 in words is "twenty billion, thirty-two million, one hundred twenty thousand, forty-nine".