1231300353 has 4 divisors (see below), whose sum is σ = 1641733808. Its totient is φ = 820866900.

The previous prime is 1231300349. The next prime is 1231300363. The reversal of 1231300353 is 3530031321.

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 not a de Polignac number, because 1231300353 - 2² = 1231300349 is a prime.

It is a super-2 number, since 2×1231300353² = 3032201118595849218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231300303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205216723 + ... + 205216728.

It is an arithmetic number, because the mean of its divisors is an integer number (410433452).

Almost surely, 2^1231300353 is an apocalyptic number.

It is an amenable number.

1231300353 is a deficient number, since it is larger than the sum of its proper divisors (410433455).

1231300353 is an equidigital number, since it uses as much as digits as its factorization.

1231300353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410433454.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 1231300353 is about 35089.8896122516. The cubic root of 1231300353 is about 1071.8187117441.

Adding to 1231300353 its reverse (3530031321), we get a palindrome (4761331674).

The spelling of 1231300353 in words is "one billion, two hundred thirty-one million, three hundred thousand, three hundred fifty-three".