121323013 has 4 divisors (see below), whose sum is σ = 138654880. Its totient is φ = 103991148.

The previous prime is 121322969. The next prime is 121323017. The reversal of 121323013 is 310323121.

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 121323013 - 2⁹ = 121322501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121323017) 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, 8665923 + ... + 8665936.

It is an arithmetic number, because the mean of its divisors is an integer number (34663720).

Almost surely, 2^121323013 is an apocalyptic number.

It is an amenable number.

121323013 is a deficient number, since it is larger than the sum of its proper divisors (17331867).

121323013 is an equidigital number, since it uses as much as digits as its factorization.

121323013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17331866.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 121323013 is about 11014.6726233692. The cubic root of 121323013 is about 495.0484773799.

Adding to 121323013 its product of nonzero digits (108), we get a palindrome (121323121).

Adding to 121323013 its reverse (310323121), we get a palindrome (431646134).

The spelling of 121323013 in words is "one hundred twenty-one million, three hundred twenty-three thousand, thirteen".