121342481040 has 160 divisors (see below), whose sum is σ = 410690964096. Its totient is φ = 29392506880.

The previous prime is 121342481033. The next prime is 121342481041. The reversal of 121342481040 is 40184243121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 121342480989 and 121342481007.

It is not an unprimeable number, because it can be changed into a prime (121342481041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3353284 + ... + 3389276.

Almost surely, 2^121342481040 is an apocalyptic number.

121342481040 is a gapful number since it is divisible by the number (10) 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 121342481040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205345482048).

121342481040 is an abundant number, since it is smaller than the sum of its proper divisors (289348483056).

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

121342481040 is a wasteful number, since it uses less digits than its factorization.

121342481040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37297 (or 37291 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 121342481040 in words is "one hundred twenty-one billion, three hundred forty-two million, four hundred eighty-one thousand, forty".