1320625203 has 16 divisors (see below), whose sum is σ = 1819585536. Its totient is φ = 851101920.

The previous prime is 1320625199. The next prime is 1320625219. The reversal of 1320625203 is 3025260231.

It is not a de Polignac number, because 1320625203 - 2² = 1320625199 is a prime.

1320625203 is a modest number, since divided by 25203 gives 13206 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1320625253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85600 + ... + 99842.

It is an arithmetic number, because the mean of its divisors is an integer number (113724096).

Almost surely, 2^1320625203 is an apocalyptic number.

1320625203 is a deficient number, since it is larger than the sum of its proper divisors (498960333).

1320625203 is a wasteful number, since it uses less digits than its factorization.

1320625203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15274.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1320625203 is about 36340.4073037163. The cubic root of 1320625203 is about 1097.1344709040.

Adding to 1320625203 its reverse (3025260231), we get a palindrome (4345885434).

The spelling of 1320625203 in words is "one billion, three hundred twenty million, six hundred twenty-five thousand, two hundred three".