1273201270 has 16 divisors (see below), whose sum is σ = 2500104528. Its totient is φ = 462982240.

The previous prime is 1273201207. The next prime is 1273201273. The reversal of 1273201270 is 721023721.

It is a super-2 number, since 2×1273201270² = 3242082947859225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273201273) 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, 5787169 + ... + 5787388.

It is an arithmetic number, because the mean of its divisors is an integer number (156256533).

Almost surely, 2^1273201270 is an apocalyptic number.

1273201270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1273201270 is a deficient number, since it is larger than the sum of its proper divisors (1226903258).

1273201270 is a wasteful number, since it uses less digits than its factorization.

1273201270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11574575.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 1273201270 is about 35681.9459951388. The cubic root of 1273201270 is about 1083.8412796437.

Adding to 1273201270 its reverse (721023721), we get a palindrome (1994224991).

The spelling of 1273201270 in words is "one billion, two hundred seventy-three million, two hundred one thousand, two hundred seventy".