111001000077438 has 16 divisors (see below), whose sum is σ = 223228530544656. Its totient is φ = 36795911627520.

The previous prime is 111001000077437. The next prime is 111001000077463. The reversal of 111001000077438 is 834770000100111.

It is a junction number, because it is equal to n+sod(n) for n = 111001000077399 and 111001000077408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001000077437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51105431731 + ... + 51105433902.

It is an arithmetic number, because the mean of its divisors is an integer number (13951783159041).

Almost surely, 2^{111001000077438} is an apocalyptic number.

111001000077438 is an abundant number, since it is smaller than the sum of its proper divisors (112227530467218).

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

111001000077438 is a wasteful number, since it uses less digits than its factorization.

111001000077438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102210865819.

The product of its (nonzero) digits is 4704, while the sum is 33.

Adding to 111001000077438 its reverse (834770000100111), we get a palindrome (945771000177549).

The spelling of 111001000077438 in words is "one hundred eleven trillion, one billion, seventy-seven thousand, four hundred thirty-eight".