20110870049 has 2 divisors, whose sum is σ = 20110870050. Its totient is φ = 20110870048.

The previous prime is 20110869841. The next prime is 20110870057. The reversal of 20110870049 is 94007801102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16098534400 + 4012335649 = 126880^2 + 63343^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110870049 - 2¹⁶ = 20110804513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20110869997 and 20110870024.

It is not a weakly prime, because it can be changed into another prime (20110840049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055435024 + 10055435025.

It is an arithmetic number, because the mean of its divisors is an integer number (10055435025).

Almost surely, 2^20110870049 is an apocalyptic number.

It is an amenable number.

20110870049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110870049 is an equidigital number, since it uses as much as digits as its factorization.

20110870049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 20110870049 in words is "twenty billion, one hundred ten million, eight hundred seventy thousand, forty-nine".