2530042121 has 2 divisors, whose sum is σ = 2530042122. Its totient is φ = 2530042120.

The previous prime is 2530042093. The next prime is 2530042171. The reversal of 2530042121 is 1212400352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2421132025 + 108910096 = 49205^2 + 10436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530042121 - 2¹⁰ = 2530041097 is a prime.

It is a super-2 number, since 2×2530042121² = 12802226268068357282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2530042093 and 2530042102.

It is not a weakly prime, because it can be changed into another prime (2530042171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265021060 + 1265021061.

It is an arithmetic number, because the mean of its divisors is an integer number (1265021061).

Almost surely, 2^2530042121 is an apocalyptic number.

It is an amenable number.

2530042121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530042121 is an equidigital number, since it uses as much as digits as its factorization.

2530042121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2530042121 is about 50299.5240633547. The cubic root of 2530042121 is about 1362.6236336595.

Adding to 2530042121 its reverse (1212400352), we get a palindrome (3742442473).

The spelling of 2530042121 in words is "two billion, five hundred thirty million, forty-two thousand, one hundred twenty-one".