1203110131 has 4 divisors (see below), whose sum is σ = 1203179752. Its totient is φ = 1203040512.

The previous prime is 1203110113. The next prime is 1203110141. The reversal of 1203110131 is 1310113021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1203110131 - 2⁷ = 1203110003 is a prime.

It is a super-2 number, since 2×1203110131² = 2894947974629674322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203110141) 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, 13000 + ... + 50746.

It is an arithmetic number, because the mean of its divisors is an integer number (300794938).

Almost surely, 2^1203110131 is an apocalyptic number.

1203110131 is a deficient number, since it is larger than the sum of its proper divisors (69621).

1203110131 is an equidigital number, since it uses as much as digits as its factorization.

1203110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69620.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1203110131 is about 34685.8779764907. The cubic root of 1203110131 is about 1063.5758347891.

Adding to 1203110131 its reverse (1310113021), we get a palindrome (2513223152).

The spelling of 1203110131 in words is "one billion, two hundred three million, one hundred ten thousand, one hundred thirty-one".