121423044 has 48 divisors (see below), whose sum is σ = 300900096. Its totient is φ = 37977600.

The previous prime is 121422997. The next prime is 121423069. The reversal of 121423044 is 440324121.

It is a super-2 number, since 2×121423044² = 29487111228451872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121423044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87234 + ... + 88614.

It is an arithmetic number, because the mean of its divisors is an integer number (6268752).

Almost surely, 2^121423044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121423044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150450048).

121423044 is an abundant number, since it is smaller than the sum of its proper divisors (179477052).

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

121423044 is a wasteful number, since it uses less digits than its factorization.

121423044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 121423044 is about 11019.2124945479. The cubic root of 121423044 is about 495.1844960665.

Adding to 121423044 its reverse (440324121), we get a palindrome (561747165).

The spelling of 121423044 in words is "one hundred twenty-one million, four hundred twenty-three thousand, forty-four".