1013132121 has 4 divisors (see below), whose sum is σ = 1350842832. Its totient is φ = 675421412.

The previous prime is 1013132093. The next prime is 1013132143. The reversal of 1013132121 is 1212313101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1212313101 = 3 ⋅404104367.

It is a cyclic number.

It is not a de Polignac number, because 1013132121 - 2⁵ = 1013132089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1013132121.

It is not an unprimeable number, because it can be changed into a prime (1013132161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168855351 + ... + 168855356.

It is an arithmetic number, because the mean of its divisors is an integer number (337710708).

Almost surely, 2^1013132121 is an apocalyptic number.

It is an amenable number.

1013132121 is a deficient number, since it is larger than the sum of its proper divisors (337710711).

1013132121 is an equidigital number, since it uses as much as digits as its factorization.

1013132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337710710.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1013132121 is about 31829.7364268069. The cubic root of 1013132121 is about 1004.3583508486.

Adding to 1013132121 its reverse (1212313101), we get a palindrome (2225445222).

The spelling of 1013132121 in words is "one billion, thirteen million, one hundred thirty-two thousand, one hundred twenty-one".