111434021320 has 16 divisors (see below), whose sum is σ = 250726548060. Its totient is φ = 44573608512.

The previous prime is 111434021317. The next prime is 111434021399. The reversal of 111434021320 is 23120434111.

It can be written as a sum of positive squares in 2 ways, for example, as 105907288356 + 5526732964 = 325434^2 + 74342^2 .

It is a super-2 number, since 2×111434021320² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111434021291 and 111434021300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392925227 + ... + 1392925306.

Almost surely, 2^111434021320 is an apocalyptic number.

111434021320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111434021320 is an abundant number, since it is smaller than the sum of its proper divisors (139292526740).

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

111434021320 is a wasteful number, since it uses less digits than its factorization.

111434021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785850544 (or 2785850540 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 111434021320 its reverse (23120434111), we get a palindrome (134554455431).

The spelling of 111434021320 in words is "one hundred eleven billion, four hundred thirty-four million, twenty-one thousand, three hundred twenty".