2420023121 has 2 divisors, whose sum is σ = 2420023122. Its totient is φ = 2420023120.

The previous prime is 2420023061. The next prime is 2420023157. The reversal of 2420023121 is 1213200242.

2420023121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2224442896 + 195580225 = 47164^2 + 13985^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420023121 - 2¹⁴ = 2420006737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2420023121.

It is not a weakly prime, because it can be changed into another prime (2420023181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210011560 + 1210011561.

It is an arithmetic number, because the mean of its divisors is an integer number (1210011561).

Almost surely, 2^2420023121 is an apocalyptic number.

It is an amenable number.

2420023121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420023121 is an equidigital number, since it uses as much as digits as its factorization.

2420023121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2420023121 is about 49193.7305050146. The cubic root of 2420023121 is about 1342.5789646157.

Adding to 2420023121 its reverse (1213200242), we get a palindrome (3633223363).

The spelling of 2420023121 in words is "two billion, four hundred twenty million, twenty-three thousand, one hundred twenty-one".