1231223301 has 32 divisors (see below), whose sum is σ = 2274124800. Its totient is φ = 639595440.

The previous prime is 1231223251. The next prime is 1231223321. The reversal of 1231223301 is 1033221321.

It is not a de Polignac number, because 1231223301 - 2⁹ = 1231222789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231223321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294031 + ... + 298188.

It is an arithmetic number, because the mean of its divisors is an integer number (71066400).

Almost surely, 2^1231223301 is an apocalyptic number.

1231223301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1231223301 is a deficient number, since it is larger than the sum of its proper divisors (1042901499).

1231223301 is a wasteful number, since it uses less digits than its factorization.

1231223301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592246 (or 592240 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1231223301 is about 35088.7916719855. The cubic root of 1231223301 is about 1071.7963539449.

Adding to 1231223301 its reverse (1033221321), we get a palindrome (2264444622).

The spelling of 1231223301 in words is "one billion, two hundred thirty-one million, two hundred twenty-three thousand, three hundred one".