1240120141 has 24 divisors (see below), whose sum is σ = 1414575360. Its totient is φ = 1084539456.

The previous prime is 1240120111. The next prime is 1240120163. The reversal of 1240120141 is 1410210421.

It is a happy number.

It is not a de Polignac number, because 1240120141 - 2¹¹ = 1240118093 is a prime.

It is a super-2 number, since 2×1240120141² = 3075795928227719762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240120111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422220 + ... + 425146.

It is an arithmetic number, because the mean of its divisors is an integer number (58940640).

Almost surely, 2^1240120141 is an apocalyptic number.

It is an amenable number.

1240120141 is a deficient number, since it is larger than the sum of its proper divisors (174455219).

1240120141 is a wasteful number, since it uses less digits than its factorization.

1240120141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085 (or 3072 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1240120141 is about 35215.3395695683. The cubic root of 1240120141 is about 1074.3717666239.

Adding to 1240120141 its reverse (1410210421), we get a palindrome (2650330562).

The spelling of 1240120141 in words is "one billion, two hundred forty million, one hundred twenty thousand, one hundred forty-one".