2511423121 has 2 divisors, whose sum is σ = 2511423122. Its totient is φ = 2511423120.

The previous prime is 2511423053. The next prime is 2511423133. The reversal of 2511423121 is 1213241152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1930372096 + 581051025 = 43936^2 + 24105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2511423121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2511423092 and 2511423101.

It is not a weakly prime, because it can be changed into another prime (2511423151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255711560 + 1255711561.

It is an arithmetic number, because the mean of its divisors is an integer number (1255711561).

Almost surely, 2^2511423121 is an apocalyptic number.

It is an amenable number.

2511423121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2511423121 is an equidigital number, since it uses as much as digits as its factorization.

2511423121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 22.

The square root of 2511423121 is about 50114.1010195733. The cubic root of 2511423121 is about 1359.2728092298.

Adding to 2511423121 its reverse (1213241152), we get a palindrome (3724664273).

The spelling of 2511423121 in words is "two billion, five hundred eleven million, four hundred twenty-three thousand, one hundred twenty-one".