1320231331233 has 48 divisors (see below), whose sum is σ = 1923734292480. Its totient is φ = 872473852800.

The previous prime is 1320231331219. The next prime is 1320231331247. The reversal of 1320231331233 is 3321331320231.

1320231331233 is a `hidden beast` number, since 1 + 3 + 2 + 0 + 2 + 313 + 312 + 33 = 666.

It is an interprime number because it is at equal distance from previous prime (1320231331219) and next prime (1320231331247).

It is not a de Polignac number, because 1320231331233 - 2⁶ = 1320231331169 is a prime.

It is a super-2 number, since 2×1320231331233² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320231331197 and 1320231331206.

It is not an unprimeable number, because it can be changed into a prime (1320231331213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 571775083 + ... + 571777391.

It is an arithmetic number, because the mean of its divisors is an integer number (40077797760).

Almost surely, 2^{1320231331233} is an apocalyptic number.

It is an amenable number.

1320231331233 is a deficient number, since it is larger than the sum of its proper divisors (603502961247).

1320231331233 is a wasteful number, since it uses less digits than its factorization.

1320231331233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1320231331233 its reverse (3321331320231), we get a palindrome (4641562651464).

The spelling of 1320231331233 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, three hundred thirty-one thousand, two hundred thirty-three".