961223233237 has 2 divisors, whose sum is σ = 961223233238. Its totient is φ = 961223233236.

The previous prime is 961223233219. The next prime is 961223233259. The reversal of 961223233237 is 732332322169.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 617656099921 + 343567133316 = 785911^2 + 586146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961223233237 is a prime.

It is a super-2 number, since 2×961223233237² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 961223233193 and 961223233202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961223233297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480611616618 + 480611616619.

It is an arithmetic number, because the mean of its divisors is an integer number (480611616619).

Almost surely, 2^961223233237 is an apocalyptic number.

It is an amenable number.

961223233237 is a deficient number, since it is larger than the sum of its proper divisors (1).

961223233237 is an equidigital number, since it uses as much as digits as its factorization.

961223233237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 43.

It can be divided in two parts, 9612232 and 33237, that added together give a palindrome (9645469).

The spelling of 961223233237 in words is "nine hundred sixty-one billion, two hundred twenty-three million, two hundred thirty-three thousand, two hundred thirty-seven".