121323132 has 72 divisors (see below), whose sum is σ = 368950400. Its totient is φ = 32838048.

The previous prime is 121323107. The next prime is 121323143. The reversal of 121323132 is 231323121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7882 + ... + 17457.

Almost surely, 2^121323132 is an apocalyptic number.

121323132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121323132 is an abundant number, since it is smaller than the sum of its proper divisors (247627268).

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

121323132 is a wasteful number, since it uses less digits than its factorization.

121323132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25375 (or 25370 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 121323132 is about 11014.6780252534. The cubic root of 121323132 is about 495.0486392364.

Adding to 121323132 its reverse (231323121), we get a palindrome (352646253).

The spelling of 121323132 in words is "one hundred twenty-one million, three hundred twenty-three thousand, one hundred thirty-two".