1253401203 has 8 divisors (see below), whose sum is σ = 1675062928. Its totient is φ = 833670144.

The previous prime is 1253401189. The next prime is 1253401223. The reversal of 1253401203 is 3021043521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1253401203 - 2¹² = 1253397107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1253401203.

It is not an unprimeable number, because it can be changed into a prime (1253401223) 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, 481150 + ... + 483747.

It is an arithmetic number, because the mean of its divisors is an integer number (209382866).

Almost surely, 2^1253401203 is an apocalyptic number.

1253401203 is a deficient number, since it is larger than the sum of its proper divisors (421661725).

1253401203 is an equidigital number, since it uses as much as digits as its factorization.

1253401203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965333.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1253401203 is about 35403.4066581170. The cubic root of 1253401203 is about 1078.1934828366.

Adding to 1253401203 its reverse (3021043521), we get a palindrome (4274444724).

The spelling of 1253401203 in words is "one billion, two hundred fifty-three million, four hundred one thousand, two hundred three".