1233223211331 has 32 divisors (see below), whose sum is σ = 1986750722880. Its totient is φ = 752873937408.

The previous prime is 1233223211321. The next prime is 1233223211347. The reversal of 1233223211331 is 1331123223321.

1233223211331 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 2 + 2 + 321 + 1 + 331 = 666.

It is not a de Polignac number, because 1233223211331 - 2⁶ = 1233223211267 is a prime.

It is a super-2 number, since 2×1233223211331² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1233223211295 and 1233223211304.

It is not an unprimeable number, because it can be changed into a prime (1233223211321) 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, 36290596 + ... + 36324561.

It is an arithmetic number, because the mean of its divisors is an integer number (62085960090).

Almost surely, 2^{1233223211331} is an apocalyptic number.

1233223211331 is a deficient number, since it is larger than the sum of its proper divisors (753527511549).

1233223211331 is a wasteful number, since it uses less digits than its factorization.

1233223211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72615220 (or 72615214 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1233223211331 its reverse (1331123223321), we get a palindrome (2564346434652).

It can be divided in two parts, 123322 and 3211331, that added together give a triangular number (3334653 = T₂₅₈₂).

The spelling of 1233223211331 in words is "one trillion, two hundred thirty-three billion, two hundred twenty-three million, two hundred eleven thousand, three hundred thirty-one".