1231333041 has 4 divisors (see below), whose sum is σ = 1641777392. Its totient is φ = 820888692.

The previous prime is 1231333013. The next prime is 1231333043. The reversal of 1231333041 is 1403331321.

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 1231333041 - 2⁷ = 1231332913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231332999 and 1231333017.

It is not an unprimeable number, because it can be changed into a prime (1231333043) 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, 205222171 + ... + 205222176.

It is an arithmetic number, because the mean of its divisors is an integer number (410444348).

Almost surely, 2^1231333041 is an apocalyptic number.

It is an amenable number.

1231333041 is a deficient number, since it is larger than the sum of its proper divisors (410444351).

1231333041 is an equidigital number, since it uses as much as digits as its factorization.

1231333041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410444350.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1231333041 is about 35090.3553843503. The cubic root of 1231333041 is about 1071.8281963782.

Adding to 1231333041 its reverse (1403331321), we get a palindrome (2634664362).

It can be divided in two parts, 12313 and 33041, that added together give a palindrome (45354).

The spelling of 1231333041 in words is "one billion, two hundred thirty-one million, three hundred thirty-three thousand, forty-one".