121323012 has 12 divisors (see below), whose sum is σ = 283087056. Its totient is φ = 40441000.

The previous prime is 121322969. The next prime is 121323017. The reversal of 121323012 is 210323121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 121322982 and 121323000.

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, 5055114 + ... + 5055137.

It is an arithmetic number, because the mean of its divisors is an integer number (23590588).

Almost surely, 2^121323012 is an apocalyptic number.

121323012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121323012 is an abundant number, since it is smaller than the sum of its proper divisors (161764044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121323012 is a wasteful number, since it uses less digits than its factorization.

121323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110258 (or 10110256 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121323012 is about 11014.6725779753. The cubic root of 121323012 is about 495.0484760198.

Adding to 121323012 its reverse (210323121), we get a palindrome (331646133).

The spelling of 121323012 in words is "one hundred twenty-one million, three hundred twenty-three thousand, twelve".