1203287401 has 4 divisors (see below), whose sum is σ = 1244780100. Its totient is φ = 1161794704.

The previous prime is 1203287399. The next prime is 1203287453. The reversal of 1203287401 is 1047823021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 777071376 + 426216025 = 27876^2 + 20645^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203287401 - 2¹ = 1203287399 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 1203287401.

It is not an unprimeable number, because it can be changed into a prime (1203237401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20746306 + ... + 20746363.

It is an arithmetic number, because the mean of its divisors is an integer number (311195025).

Almost surely, 2^1203287401 is an apocalyptic number.

It is an amenable number.

1203287401 is a deficient number, since it is larger than the sum of its proper divisors (41492699).

1203287401 is an equidigital number, since it uses as much as digits as its factorization.

1203287401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41492698.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1203287401 is about 34688.4332451035. The cubic root of 1203287401 is about 1063.6280690842.

The spelling of 1203287401 in words is "one billion, two hundred three million, two hundred eighty-seven thousand, four hundred one".