111151242623 has 2 divisors, whose sum is σ = 111151242624. Its totient is φ = 111151242622.

The previous prime is 111151242607. The next prime is 111151242691. The reversal of 111151242623 is 326242151111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111151242623 - 2⁴ = 111151242607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111151241623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55575621311 + 55575621312.

It is an arithmetic number, because the mean of its divisors is an integer number (55575621312).

Almost surely, 2^111151242623 is an apocalyptic number.

111151242623 is a deficient number, since it is larger than the sum of its proper divisors (1).

111151242623 is an equidigital number, since it uses as much as digits as its factorization.

111151242623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

Adding to 111151242623 its reverse (326242151111), we get a palindrome (437393393734).

The spelling of 111151242623 in words is "one hundred eleven billion, one hundred fifty-one million, two hundred forty-two thousand, six hundred twenty-three".