1401203113 has 4 divisors (see below), whose sum is σ = 1401575940. Its totient is φ = 1400830288.

The previous prime is 1401203101. The next prime is 1401203129. The reversal of 1401203113 is 3113021041.

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 351637504 + 1049565609 = 18752^2 + 32397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401203113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401203173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180718 + ... + 188311.

It is an arithmetic number, because the mean of its divisors is an integer number (350393985).

Almost surely, 2^1401203113 is an apocalyptic number.

It is an amenable number.

1401203113 is a deficient number, since it is larger than the sum of its proper divisors (372827).

1401203113 is an equidigital number, since it uses as much as digits as its factorization.

1401203113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372826.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1401203113 is about 37432.6476888825. The cubic root of 1401203113 is about 1119.0093049028.

Adding to 1401203113 its reverse (3113021041), we get a palindrome (4514224154).

The spelling of 1401203113 in words is "one billion, four hundred one million, two hundred three thousand, one hundred thirteen".