2090121013 has 2 divisors, whose sum is σ = 2090121014. Its totient is φ = 2090121012.

The previous prime is 2090120969. The next prime is 2090121037. The reversal of 2090121013 is 3101210902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1955143089 + 134977924 = 44217^2 + 11618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2090121013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2090121713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045060506 + 1045060507.

It is an arithmetic number, because the mean of its divisors is an integer number (1045060507).

Almost surely, 2^2090121013 is an apocalyptic number.

It is an amenable number.

2090121013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090121013 is an equidigital number, since it uses as much as digits as its factorization.

2090121013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2090121013 is about 45717.8412985565. The cubic root of 2090121013 is about 1278.5679404471.

Adding to 2090121013 its reverse (3101210902), we get a palindrome (5191331915).

It can be divided in two parts, 20901 and 21013, that added together give a palindrome (41914).

The spelling of 2090121013 in words is "two billion, ninety million, one hundred twenty-one thousand, thirteen".