111111106051 has 8 divisors (see below), whose sum is σ = 121214717424. Its totient is φ = 101007928320.

The previous prime is 111111106049. The next prime is 111111106081. The reversal of 111111106051 is 150601111111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111111106051 - 2¹ = 111111106049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111111106081) 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, 671031 + ... + 820063.

It is an arithmetic number, because the mean of its divisors is an integer number (15151839678).

Almost surely, 2^111111106051 is an apocalyptic number.

111111106051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111111106051 is a deficient number, since it is larger than the sum of its proper divisors (10103611373).

111111106051 is a wasteful number, since it uses less digits than its factorization.

111111106051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216821.

The product of its (nonzero) digits is 30, while the sum is 19.

Adding to 111111106051 its reverse (150601111111), we get a palindrome (261712217162).

It can be divided in two parts, 1111111060 and 51, that added together give a palindrome (1111111111).

The spelling of 111111106051 in words is "one hundred eleven billion, one hundred eleven million, one hundred six thousand, fifty-one".