111551342001 has 16 divisors (see below), whose sum is σ = 164678239488. Its totient is φ = 66597814800.

The previous prime is 111551341973. The next prime is 111551342011. The reversal of 111551342001 is 100243155111.

It is not a de Polignac number, because 111551342001 - 2¹⁰ = 111551340977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111551342011) 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, 25224235 + ... + 25228656.

It is an arithmetic number, because the mean of its divisors is an integer number (10292389968).

Almost surely, 2^111551342001 is an apocalyptic number.

111551342001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111551342001 is a deficient number, since it is larger than the sum of its proper divisors (53126897487).

111551342001 is a wasteful number, since it uses less digits than its factorization.

111551342001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50452972.

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 111551342001 its reverse (100243155111), we get a palindrome (211794497112).

The spelling of 111551342001 in words is "one hundred eleven billion, five hundred fifty-one million, three hundred forty-two thousand, one".