1200403131140 has 12 divisors (see below), whose sum is σ = 2520846575436. Its totient is φ = 480161252448.

The previous prime is 1200403131139. The next prime is 1200403131163. The reversal of 1200403131140 is 411313040021.

It can be written as a sum of positive squares in 2 ways, for example, as 672911777344 + 527491353796 = 820312^2 + 726286^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 60020156557 = 1200403131140 / (1 + 2 + 0 + 0 + 4 + 0 + 3 + 1 + 3 + 1 + 1 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30010078259 + ... + 30010078298.

It is an arithmetic number, because the mean of its divisors is an integer number (210070547953).

Almost surely, 2^{1200403131140} is an apocalyptic number.

1200403131140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200403131140 is an abundant number, since it is smaller than the sum of its proper divisors (1320443444296).

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

1200403131140 is a wasteful number, since it uses less digits than its factorization.

1200403131140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60020156566 (or 60020156564 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1200403131140 its reverse (411313040021), we get a palindrome (1611716171161).

The spelling of 1200403131140 in words is "one trillion, two hundred billion, four hundred three million, one hundred thirty-one thousand, one hundred forty".