121537002032740 has 72 divisors (see below), whose sum is σ = 296961297648120. Its totient is φ = 41660879920128.

The previous prime is 121537002032707. The next prime is 121537002032753. The reversal of 121537002032740 is 47230200735121.

It can be written as a sum of positive squares in 4 ways, for example, as 8866292327424 + 112670709705316 = 2977632^2 + 10614646^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121537002032740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8751295 + ... + 17879014.

It is an arithmetic number, because the mean of its divisors is an integer number (4124462467335).

Almost surely, 2^{121537002032740} is an apocalyptic number.

121537002032740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121537002032740 is an abundant number, since it is smaller than the sum of its proper divisors (175424295615380).

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

121537002032740 is a wasteful number, since it uses less digits than its factorization.

121537002032740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26634989 (or 26634980 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

Adding to 121537002032740 its reverse (47230200735121), we get a palindrome (168767202767861).

The spelling of 121537002032740 in words is "one hundred twenty-one trillion, five hundred thirty-seven billion, two million, thirty-two thousand, seven hundred forty".