2130452121 has 64 divisors (see below), whose sum is σ = 3631564800. Its totient is φ = 1081506816.

The previous prime is 2130452117. The next prime is 2130452123. The reversal of 2130452121 is 1212540312.

It is not a de Polignac number, because 2130452121 - 2² = 2130452117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2130452123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3004515 + ... + 3005223.

It is an arithmetic number, because the mean of its divisors is an integer number (56743200).

Almost surely, 2^2130452121 is an apocalyptic number.

2130452121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2130452121 is a deficient number, since it is larger than the sum of its proper divisors (1501112679).

2130452121 is a wasteful number, since it uses less digits than its factorization.

2130452121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2130452121 is about 46156.8209585539. The cubic root of 2130452121 is about 1286.7393808927.

Adding to 2130452121 its reverse (1212540312), we get a palindrome (3342992433).

The spelling of 2130452121 in words is "two billion, one hundred thirty million, four hundred fifty-two thousand, one hundred twenty-one".