111030031230 has 32 divisors (see below), whose sum is σ = 272141697024. Its totient is φ = 28978050336.

The previous prime is 111030031223. The next prime is 111030031237. The reversal of 111030031230 is 32130030111.

It is an interprime number because it is at equal distance from previous prime (111030031223) and next prime (111030031237).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111030031237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39370942 + ... + 39373761.

It is an arithmetic number, because the mean of its divisors is an integer number (8504428032).

Almost surely, 2^111030031230 is an apocalyptic number.

111030031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111030031230 is an abundant number, since it is smaller than the sum of its proper divisors (161111665794).

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

111030031230 is a wasteful number, since it uses less digits than its factorization.

111030031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78744760.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 111030031230 its reverse (32130030111), we get a palindrome (143160061341).

The spelling of 111030031230 in words is "one hundred eleven billion, thirty million, thirty-one thousand, two hundred thirty".