111133231023 has 8 divisors (see below), whose sum is σ = 148182338736. Its totient is φ = 74086472000.

The previous prime is 111133231019. The next prime is 111133231091. The reversal of 111133231023 is 320132331111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111133231023 - 2² = 111133231019 is a prime.

It is a super-2 number, since 2×111133231023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111133231823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473628 + ... + 668273.

It is an arithmetic number, because the mean of its divisors is an integer number (18522792342).

Almost surely, 2^111133231023 is an apocalyptic number.

111133231023 is a deficient number, since it is larger than the sum of its proper divisors (37049107713).

111133231023 is a wasteful number, since it uses less digits than its factorization.

111133231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174345.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 111133231023 its reverse (320132331111), we get a palindrome (431265562134).

The spelling of 111133231023 in words is "one hundred eleven billion, one hundred thirty-three million, two hundred thirty-one thousand, twenty-three".