1042121140 has 24 divisors (see below), whose sum is σ = 2194244640. Its totient is φ = 415745568.

The previous prime is 1042121117. The next prime is 1042121167. The reversal of 1042121140 is 411212401.

It is a happy number.

1042121140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 61162 + ... + 76321.

It is an arithmetic number, because the mean of its divisors is an integer number (91426860).

Almost surely, 2^1042121140 is an apocalyptic number.

1042121140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042121140 is an abundant number, since it is smaller than the sum of its proper divisors (1152123500).

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

1042121140 is a wasteful number, since it uses less digits than its factorization.

1042121140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137871 (or 137869 counting only the distinct ones).

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

The square root of 1042121140 is about 32281.9011212165. The cubic root of 1042121140 is about 1013.8477350868.

Adding to 1042121140 its reverse (411212401), we get a palindrome (1453333541).

The spelling of 1042121140 in words is "one billion, forty-two million, one hundred twenty-one thousand, one hundred forty".