1231230201033 has 32 divisors (see below), whose sum is σ = 1957821161472. Its totient is φ = 672940065600.

The previous prime is 1231230200957. The next prime is 1231230201107. The reversal of 1231230201033 is 3301020321321.

It is not a de Polignac number, because 1231230201033 - 2¹⁰ = 1231230200009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1231230201833) 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, 14322048 + ... + 14407758.

It is an arithmetic number, because the mean of its divisors is an integer number (61181911296).

Almost surely, 2^{1231230201033} is an apocalyptic number.

It is an amenable number.

1231230201033 is a deficient number, since it is larger than the sum of its proper divisors (726590960439).

1231230201033 is a wasteful number, since it uses less digits than its factorization.

1231230201033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115485.

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

Adding to 1231230201033 its reverse (3301020321321), we get a palindrome (4532250522354).

The spelling of 1231230201033 in words is "one trillion, two hundred thirty-one billion, two hundred thirty million, two hundred one thousand, thirty-three".