1232121044 has 96 divisors (see below), whose sum is σ = 2843043840. Its totient is φ = 452649600.

The previous prime is 1232120977. The next prime is 1232121047. The reversal of 1232121044 is 4401212321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232121047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1819634 + ... + 1820310.

It is an arithmetic number, because the mean of its divisors is an integer number (29615040).

Almost surely, 2^1232121044 is an apocalyptic number.

1232121044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232121044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1421521920).

1232121044 is an abundant number, since it is smaller than the sum of its proper divisors (1610922796).

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

1232121044 is a wasteful number, since it uses less digits than its factorization.

1232121044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1232121044 is about 35101.5817877201. The cubic root of 1232121044 is about 1072.0567897534.

Adding to 1232121044 its reverse (4401212321), we get a palindrome (5633333365).

The spelling of 1232121044 in words is "one billion, two hundred thirty-two million, one hundred twenty-one thousand, forty-four".