111142401 has 16 divisors (see below), whose sum is σ = 152064000. Its totient is φ = 72167760.

The previous prime is 111142397. The next prime is 111142411. The reversal of 111142401 is 104241111.

It is not a de Polignac number, because 111142401 - 2² = 111142397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111142411) 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, 54600 + ... + 56598.

It is an arithmetic number, because the mean of its divisors is an integer number (9504000).

Almost surely, 2^111142401 is an apocalyptic number.

It is an amenable number.

111142401 is a deficient number, since it is larger than the sum of its proper divisors (40921599).

111142401 is a wasteful number, since it uses less digits than its factorization.

111142401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 111142401 is about 10542.4096391669. The cubic root of 111142401 is about 480.7949803625.

Adding to 111142401 its reverse (104241111), we get a palindrome (215383512).

The spelling of 111142401 in words is "one hundred eleven million, one hundred forty-two thousand, four hundred one".