111130402421 has 16 divisors (see below), whose sum is σ = 119758476288. Its totient is φ = 102821875200.

The previous prime is 111130402403. The next prime is 111130402429. The reversal of 111130402421 is 124204031111.

It is a cyclic number.

It is not a de Polignac number, because 111130402421 - 2¹⁰ = 111130401397 is a prime.

It is a super-2 number, since 2×111130402421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111130402393 and 111130402402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111130402429) 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, 1548485 + ... + 1618661.

It is an arithmetic number, because the mean of its divisors is an integer number (7484904768).

Almost surely, 2^111130402421 is an apocalyptic number.

It is an amenable number.

111130402421 is a deficient number, since it is larger than the sum of its proper divisors (8628073867).

111130402421 is a wasteful number, since it uses less digits than its factorization.

111130402421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72452.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 111130402421 its reverse (124204031111), we get a palindrome (235334433532).

The spelling of 111130402421 in words is "one hundred eleven billion, one hundred thirty million, four hundred two thousand, four hundred twenty-one".