1231032021233 has 8 divisors (see below), whose sum is σ = 1444917893952. Its totient is φ = 1026652187376.

The previous prime is 1231032021229. The next prime is 1231032021239. The reversal of 1231032021233 is 3321202301321.

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 1231032021233 - 2² = 1231032021229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231032021199 and 1231032021208.

It is not an unprimeable number, because it can be changed into a prime (1231032021239) 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, 2376509435 + ... + 2376509952.

It is an arithmetic number, because the mean of its divisors is an integer number (180614736744).

Almost surely, 2^{1231032021233} is an apocalyptic number.

It is an amenable number.

1231032021233 is a deficient number, since it is larger than the sum of its proper divisors (213885872719).

1231032021233 is an equidigital number, since it uses as much as digits as its factorization.

1231032021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753019431.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1231032021233 its reverse (3321202301321), we get a palindrome (4552234322554).

The spelling of 1231032021233 in words is "one trillion, two hundred thirty-one billion, thirty-two million, twenty-one thousand, two hundred thirty-three".