140121415311440 has 40 divisors (see below), whose sum is σ = 328665319740648. Its totient is φ = 55552561111040.

The previous prime is 140121415311281. The next prime is 140121415311511. The reversal of 140121415311440 is 44113514121041.

It can be written as a sum of positive squares in 4 ways, for example, as 157088566336 + 139964326745104 = 396344^2 + 11830652^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×140121415311440² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140121415311397 and 140121415311406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7750069241 + ... + 7750087320.

Almost surely, 2^{140121415311440} is an apocalyptic number.

140121415311440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140121415311440 is an abundant number, since it is smaller than the sum of its proper divisors (188543904429208).

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

140121415311440 is a wasteful number, since it uses less digits than its factorization.

140121415311440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15500156687 (or 15500156681 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

Adding to 140121415311440 its reverse (44113514121041), we get a palindrome (184234929432481).

The spelling of 140121415311440 in words is "one hundred forty trillion, one hundred twenty-one billion, four hundred fifteen million, three hundred eleven thousand, four hundred forty".