1231300133 has 8 divisors (see below), whose sum is σ = 1407413568. Its totient is φ = 1055240064.

The previous prime is 1231300121. The next prime is 1231300163. The reversal of 1231300133 is 3310031321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231300133 - 2⁴ = 1231300117 is a prime.

It is a super-2 number, since 2×1231300133² = 3032200035051635378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231300163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76085 + ... + 90837.

It is an arithmetic number, because the mean of its divisors is an integer number (175926696).

Almost surely, 2^1231300133 is an apocalyptic number.

It is an amenable number.

1231300133 is a deficient number, since it is larger than the sum of its proper divisors (176113435).

1231300133 is a wasteful number, since it uses less digits than its factorization.

1231300133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26683.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1231300133 is about 35089.8864774453. The cubic root of 1231300133 is about 1071.8186479091.

Adding to 1231300133 its reverse (3310031321), we get a palindrome (4541331454).

The spelling of 1231300133 in words is "one billion, two hundred thirty-one million, three hundred thousand, one hundred thirty-three".