1203131320 has 16 divisors (see below), whose sum is σ = 2707045560. Its totient is φ = 481252512.

The previous prime is 1203131309. The next prime is 1203131341. The reversal of 1203131320 is 231313021.

It is a junction number, because it is equal to n+sod(n) for n = 1203131294 and 1203131303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15039102 + ... + 15039181.

Almost surely, 2^1203131320 is an apocalyptic number.

1203131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203131320 is an abundant number, since it is smaller than the sum of its proper divisors (1503914240).

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

1203131320 is a wasteful number, since it uses less digits than its factorization.

1203131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30078294 (or 30078290 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1203131320 is about 34686.1834164556. The cubic root of 1203131320 is about 1063.5820785998.

Adding to 1203131320 its reverse (231313021), we get a palindrome (1434444341).

The spelling of 1203131320 in words is "one billion, two hundred three million, one hundred thirty-one thousand, three hundred twenty".