20130102049 has 2 divisors, whose sum is σ = 20130102050. Its totient is φ = 20130102048.

The previous prime is 20130101993. The next prime is 20130102103. The reversal of 20130102049 is 94020103102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19982649600 + 147452449 = 141360^2 + 12143^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130102049 - 2⁷ = 20130101921 is a prime.

It is not a weakly prime, because it can be changed into another prime (20130102449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065051024 + 10065051025.

It is an arithmetic number, because the mean of its divisors is an integer number (10065051025).

Almost surely, 2^20130102049 is an apocalyptic number.

It is an amenable number.

20130102049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130102049 is an equidigital number, since it uses as much as digits as its factorization.

20130102049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 20130102049 in words is "twenty billion, one hundred thirty million, one hundred two thousand, forty-nine".