623122331 has 8 divisors (see below), whose sum is σ = 686661360. Its totient is φ = 561812832.

The previous prime is 623122319. The next prime is 623122337. The reversal of 623122331 is 133221326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623122331 is a prime.

It is a super-2 number, since 2×623122331² = 776562878781747122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 623122297 and 623122306.

It is not an unprimeable number, because it can be changed into a prime (623122337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556796 + ... + 557913.

It is an arithmetic number, because the mean of its divisors is an integer number (85832670).

Almost surely, 2^623122331 is an apocalyptic number.

623122331 is a deficient number, since it is larger than the sum of its proper divisors (63539029).

623122331 is a wasteful number, since it uses less digits than its factorization.

623122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114765.

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

The square root of 623122331 is about 24962.4183724254. The cubic root of 623122331 is about 854.1309094604.

Adding to 623122331 its reverse (133221326), we get a palindrome (756343657).

The spelling of 623122331 in words is "six hundred twenty-three million, one hundred twenty-two thousand, three hundred thirty-one".