1255131203 has 16 divisors (see below), whose sum is σ = 1331713440. Its totient is φ = 1179648000.

The previous prime is 1255131197. The next prime is 1255131217. The reversal of 1255131203 is 3021315521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1255131203 - 2⁶ = 1255131139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255131103) 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, 1957763 + ... + 1958403.

It is an arithmetic number, because the mean of its divisors is an integer number (83232090).

Almost surely, 2^1255131203 is an apocalyptic number.

1255131203 is a deficient number, since it is larger than the sum of its proper divisors (76582237).

1255131203 is a wasteful number, since it uses less digits than its factorization.

1255131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1255131203 is about 35427.8309101757. The cubic root of 1255131203 is about 1078.6893116263.

Adding to 1255131203 its reverse (3021315521), we get a palindrome (4276446724).

The spelling of 1255131203 in words is "one billion, two hundred fifty-five million, one hundred thirty-one thousand, two hundred three".