1013330121 has 4 divisors (see below), whose sum is σ = 1351106832. Its totient is φ = 675553412.

The previous prime is 1013330083. The next prime is 1013330141. The reversal of 1013330121 is 1210333101.

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.

It is a cyclic number.

It is not a de Polignac number, because 1013330121 - 2⁶ = 1013330057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1013330121.

It is not an unprimeable number, because it can be changed into a prime (1013330141) 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, 168888351 + ... + 168888356.

It is an arithmetic number, because the mean of its divisors is an integer number (337776708).

Almost surely, 2^1013330121 is an apocalyptic number.

It is an amenable number.

1013330121 is a deficient number, since it is larger than the sum of its proper divisors (337776711).

1013330121 is an equidigital number, since it uses as much as digits as its factorization.

1013330121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337776710.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1013330121 is about 31832.8465739399. The cubic root of 1013330121 is about 1004.4237750238.

Adding to 1013330121 its reverse (1210333101), we get a palindrome (2223663222).

The spelling of 1013330121 in words is "one billion, thirteen million, three hundred thirty thousand, one hundred twenty-one".