121320031032 has 48 divisors (see below), whose sum is σ = 335566052640. Its totient is φ = 39579583488.

The previous prime is 121320031031. The next prime is 121320031039. The reversal of 121320031032 is 230130023121.

121320031032 is a `hidden beast` number, since 1 + 2 + 1 + 320 + 0 + 310 + 32 = 666.

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

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 121320030996 and 121320031014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320031031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17922153 + ... + 17928920.

It is an arithmetic number, because the mean of its divisors is an integer number (6990959430).

Almost surely, 2^121320031032 is an apocalyptic number.

121320031032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121320031032 is an abundant number, since it is smaller than the sum of its proper divisors (214246021608).

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

121320031032 is a wasteful number, since it uses less digits than its factorization.

121320031032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35851132 (or 35851125 counting only the distinct ones).

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

Adding to 121320031032 its reverse (230130023121), we get a palindrome (351450054153).

The spelling of 121320031032 in words is "one hundred twenty-one billion, three hundred twenty million, thirty-one thousand, thirty-two".