111424143401 has 2 divisors, whose sum is σ = 111424143402. Its totient is φ = 111424143400.

The previous prime is 111424143367. The next prime is 111424143431. The reversal of 111424143401 is 104341424111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110326944025 + 1097199376 = 332155^2 + 33124^2 .

It is a cyclic number.

It is not a de Polignac number, because 111424143401 - 2²² = 111419949097 is a prime.

It is a super-2 number, since 2×111424143401² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111424143431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55712071700 + 55712071701.

It is an arithmetic number, because the mean of its divisors is an integer number (55712071701).

Almost surely, 2^111424143401 is an apocalyptic number.

It is an amenable number.

111424143401 is a deficient number, since it is larger than the sum of its proper divisors (1).

111424143401 is an equidigital number, since it uses as much as digits as its factorization.

111424143401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 111424143401 its reverse (104341424111), we get a palindrome (215765567512).

The spelling of 111424143401 in words is "one hundred eleven billion, four hundred twenty-four million, one hundred forty-three thousand, four hundred one".