140121043145240 has 32 divisors (see below), whose sum is σ = 315283923828000. Its totient is φ = 56046359169024.

The previous prime is 140121043145231. The next prime is 140121043145243. The reversal of 140121043145240 is 42541340121041.

It is a super-2 number, since 2×140121043145240² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140121043145197 and 140121043145206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140121043145243) 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, 63212105 + ... + 65391224.

It is an arithmetic number, because the mean of its divisors is an integer number (9852622619625).

Almost surely, 2^{140121043145240} is an apocalyptic number.

140121043145240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140121043145240 is an abundant number, since it is smaller than the sum of its proper divisors (175162880682760).

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

140121043145240 is a wasteful number, since it uses less digits than its factorization.

140121043145240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128630579 (or 128630575 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 140121043145240 its reverse (42541340121041), we get a palindrome (182662383266281).

The spelling of 140121043145240 in words is "one hundred forty trillion, one hundred twenty-one billion, forty-three million, one hundred forty-five thousand, two hundred forty".