1231023002133 has 8 divisors (see below), whose sum is σ = 1668271609696. Its totient is φ = 807228198000.

The previous prime is 1231023002093. The next prime is 1231023002161. The reversal of 1231023002133 is 3312003201321.

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

It is not a de Polignac number, because 1231023002133 - 2²⁶ = 1230955893269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231023002633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3363450643 + ... + 3363451008.

It is an arithmetic number, because the mean of its divisors is an integer number (208533951212).

Almost surely, 2^{1231023002133} is an apocalyptic number.

It is an amenable number.

1231023002133 is a deficient number, since it is larger than the sum of its proper divisors (437248607563).

1231023002133 is an equidigital number, since it uses as much as digits as its factorization.

1231023002133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726901715.

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

Adding to 1231023002133 its reverse (3312003201321), we get a palindrome (4543026203454).

The spelling of 1231023002133 in words is "one trillion, two hundred thirty-one billion, twenty-three million, two thousand, one hundred thirty-three".