121310440032 has 48 divisors (see below), whose sum is σ = 325845495360. Its totient is φ = 39496420992.

The previous prime is 121310439973. The next prime is 121310440039. The reversal of 121310440032 is 230044013121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×121310440032² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121310439990 and 121310440008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121310440039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14689482 + ... + 14697737.

It is an arithmetic number, because the mean of its divisors is an integer number (6788447820).

Almost surely, 2^121310440032 is an apocalyptic number.

121310440032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121310440032 is an abundant number, since it is smaller than the sum of its proper divisors (204535055328).

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

121310440032 is a wasteful number, since it uses less digits than its factorization.

121310440032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29387275 (or 29387267 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121310440032 its reverse (230044013121), we get a palindrome (351354453153).

The spelling of 121310440032 in words is "one hundred twenty-one billion, three hundred ten million, four hundred forty thousand, thirty-two".