1231352622 has 12 divisors (see below), whose sum is σ = 2667930720. Its totient is φ = 410450868.

The previous prime is 1231352621. The next prime is 1231352699. The reversal of 1231352622 is 2262531321.

It is a happy number.

1231352622 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 35 + 2 + 622 = 666.

1231352622 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231352621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34204222 + ... + 34204257.

It is an arithmetic number, because the mean of its divisors is an integer number (222327560).

Almost surely, 2^1231352622 is an apocalyptic number.

1231352622 is an abundant number, since it is smaller than the sum of its proper divisors (1436578098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231352622 is a wasteful number, since it uses less digits than its factorization.

1231352622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68408487 (or 68408484 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1231352622 is about 35090.6343915296. The cubic root of 1231352622 is about 1071.8338778513.

Adding to 1231352622 its reverse (2262531321), we get a palindrome (3493883943).

The spelling of 1231352622 in words is "one billion, two hundred thirty-one million, three hundred fifty-two thousand, six hundred twenty-two".