1233121211023 has 8 divisors (see below), whose sum is σ = 1328270747328. Its totient is φ = 1138013683104.

The previous prime is 1233121210969. The next prime is 1233121211029. The reversal of 1233121211023 is 3201121213321.

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 1233121211023 - 2⁹ = 1233121210511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1233121210985 and 1233121211003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233121211029) 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, 10441111 + ... + 10558552.

It is an arithmetic number, because the mean of its divisors is an integer number (166033843416).

Almost surely, 2^{1233121211023} is an apocalyptic number.

1233121211023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1233121211023 is a deficient number, since it is larger than the sum of its proper divisors (95149536305).

1233121211023 is a wasteful number, since it uses less digits than its factorization.

1233121211023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21004193.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1233121211023 its reverse (3201121213321), we get a palindrome (4434242424344).

The spelling of 1233121211023 in words is "one trillion, two hundred thirty-three billion, one hundred twenty-one million, two hundred eleven thousand, twenty-three".