121023144132 has 96 divisors (see below), whose sum is σ = 316545546240. Its totient is φ = 35670526080.

The previous prime is 121023144091. The next prime is 121023144169. The reversal of 121023144132 is 231441320121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1311958 + ... + 1401170.

It is an arithmetic number, because the mean of its divisors is an integer number (3297349440).

Almost surely, 2^121023144132 is an apocalyptic number.

121023144132 is a gapful number since it is divisible by the number (12) 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 121023144132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158272773120).

121023144132 is an abundant number, since it is smaller than the sum of its proper divisors (195522402108).

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

121023144132 is a wasteful number, since it uses less digits than its factorization.

121023144132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89513 (or 89511 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121023144132 its reverse (231441320121), we get a palindrome (352464464253).

The spelling of 121023144132 in words is "one hundred twenty-one billion, twenty-three million, one hundred forty-four thousand, one hundred thirty-two".