1201203256 has 32 divisors (see below), whose sum is σ = 2586326400. Its totient is φ = 517263840.

The previous prime is 1201203253. The next prime is 1201203257. The reversal of 1201203256 is 6523021021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201203251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357540 + ... + 360883.

It is an arithmetic number, because the mean of its divisors is an integer number (80822700).

Almost surely, 2^1201203256 is an apocalyptic number.

It is an amenable number.

1201203256 is an abundant number, since it is smaller than the sum of its proper divisors (1385123144).

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

1201203256 is a wasteful number, since it uses less digits than its factorization.

1201203256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718459 (or 718455 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1201203256 is about 34658.3793042895. The cubic root of 1201203256 is about 1063.0136311726.

Adding to 1201203256 its reverse (6523021021), we get a palindrome (7724224277).

The spelling of 1201203256 in words is "one billion, two hundred one million, two hundred three thousand, two hundred fifty-six".