1203142140 has 96 divisors (see below), whose sum is σ = 3872232000. Its totient is φ = 309770496.

The previous prime is 1203142123. The next prime is 1203142177. The reversal of 1203142140 is 412413021.

1203142140 is a `hidden beast` number, since 1 + 203 + 1 + 421 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22755 + ... + 54074.

It is an arithmetic number, because the mean of its divisors is an integer number (40335750).

Almost surely, 2^1203142140 is an apocalyptic number.

1203142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203142140 is an abundant number, since it is smaller than the sum of its proper divisors (2669089860).

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

1203142140 is a wasteful number, since it uses less digits than its factorization.

1203142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76876 (or 76868 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1203142140 is about 34686.3393859888. The cubic root of 1203142140 is about 1063.5852669256.

Adding to 1203142140 its reverse (412413021), we get a palindrome (1615555161).

The spelling of 1203142140 in words is "one billion, two hundred three million, one hundred forty-two thousand, one hundred forty".