111152381901 has 16 divisors (see below), whose sum is σ = 161729156928. Its totient is φ = 67343011200.

The previous prime is 111152381881. The next prime is 111152381941. The reversal of 111152381901 is 109183251111.

It is not a de Polignac number, because 111152381901 - 2⁵ = 111152381869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111152381941) 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, 449176 + ... + 651201.

It is an arithmetic number, because the mean of its divisors is an integer number (10108072308).

Almost surely, 2^111152381901 is an apocalyptic number.

111152381901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111152381901 is a deficient number, since it is larger than the sum of its proper divisors (50576775027).

111152381901 is a wasteful number, since it uses less digits than its factorization.

111152381901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103452.

The product of its (nonzero) digits is 2160, while the sum is 33.

The spelling of 111152381901 in words is "one hundred eleven billion, one hundred fifty-two million, three hundred eighty-one thousand, nine hundred one".