1233020312231 has 2 divisors, whose sum is σ = 1233020312232. Its totient is φ = 1233020312230.

The previous prime is 1233020312219. The next prime is 1233020312291. The reversal of 1233020312231 is 1322130203321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1233020312231 - 2¹⁴ = 1233020295847 is a prime.

It is a super-2 number, since 2×1233020312231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1233020312197 and 1233020312206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233020312291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616510156115 + 616510156116.

It is an arithmetic number, because the mean of its divisors is an integer number (616510156116).

Almost surely, 2^{1233020312231} is an apocalyptic number.

1233020312231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233020312231 is an equidigital number, since it uses as much as digits as its factorization.

1233020312231 is an evil number, because the sum of its binary digits is even.

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

Adding to 1233020312231 its reverse (1322130203321), we get a palindrome (2555150515552).

The spelling of 1233020312231 in words is "one trillion, two hundred thirty-three billion, twenty million, three hundred twelve thousand, two hundred thirty-one".