11111106051 has 12 divisors (see below), whose sum is σ = 16208281440. Its totient is φ = 7334062800.

The previous prime is 11111106043. The next prime is 11111106119. The reversal of 11111106051 is 15060111111.

It is a happy number.

It is not a de Polignac number, because 11111106051 - 2³ = 11111106043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111106011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6110811 + ... + 6112628.

It is an arithmetic number, because the mean of its divisors is an integer number (1350690120).

Almost surely, 2^11111106051 is an apocalyptic number.

11111106051 is a deficient number, since it is larger than the sum of its proper divisors (5097175389).

11111106051 is a wasteful number, since it uses less digits than its factorization.

11111106051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12223546 (or 12223543 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 18.

Adding to 11111106051 its reverse (15060111111), we get a palindrome (26171217162).

It can be divided in two parts, 111111060 and 51, that added together give a palindrome (111111111).

The spelling of 11111106051 in words is "eleven billion, one hundred eleven million, one hundred six thousand, fifty-one".