111420145051 has 2 divisors, whose sum is σ = 111420145052. Its totient is φ = 111420145050.

The previous prime is 111420144991. The next prime is 111420145063. The reversal of 111420145051 is 150541024111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111420145051 - 2¹³ = 111420136859 is a prime.

It is not a weakly prime, because it can be changed into another prime (111420145091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55710072525 + 55710072526.

It is an arithmetic number, because the mean of its divisors is an integer number (55710072526).

Almost surely, 2^111420145051 is an apocalyptic number.

111420145051 is a deficient number, since it is larger than the sum of its proper divisors (1).

111420145051 is an equidigital number, since it uses as much as digits as its factorization.

111420145051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 111420145051 its reverse (150541024111), we get a palindrome (261961169162).

The spelling of 111420145051 in words is "one hundred eleven billion, four hundred twenty million, one hundred forty-five thousand, fifty-one".