1031312201 has 4 divisors (see below), whose sum is σ = 1032916752. Its totient is φ = 1029707652.

The previous prime is 1031312179. The next prime is 1031312207. The reversal of 1031312201 is 1022131301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1031312201 - 2¹⁸ = 1031050057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031312207) 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, 801311 + ... + 802596.

It is an arithmetic number, because the mean of its divisors is an integer number (258229188).

Almost surely, 2^1031312201 is an apocalyptic number.

It is an amenable number.

1031312201 is a deficient number, since it is larger than the sum of its proper divisors (1604551).

1031312201 is an equidigital number, since it uses as much as digits as its factorization.

1031312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604550.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1031312201 is about 32114.0499003162. The cubic root of 1031312201 is about 1010.3303174074.

Adding to 1031312201 its reverse (1022131301), we get a palindrome (2053443502).

Subtracting from 1031312201 its reverse (1022131301), we obtain a square (9180900 = 3030²).

The spelling of 1031312201 in words is "one billion, thirty-one million, three hundred twelve thousand, two hundred one".