111103540421051 has 16 divisors (see below), whose sum is σ = 112246945501440. Its totient is φ = 109966083343200.

The previous prime is 111103540420997. The next prime is 111103540421143. The reversal of 111103540421051 is 150124045301111.

It is a cyclic number.

It is not a de Polignac number, because 111103540421051 - 2¹⁸ = 111103540158907 is a prime.

It is a super-2 number, since 2×111103540421051² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111103540420051) 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, 56083700 + ... + 58030926.

It is an arithmetic number, because the mean of its divisors is an integer number (7015434093840).

Almost surely, 2^{111103540421051} is an apocalyptic number.

111103540421051 is a deficient number, since it is larger than the sum of its proper divisors (1143405080389).

111103540421051 is a wasteful number, since it uses less digits than its factorization.

111103540421051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948754.

The product of its (nonzero) digits is 2400, while the sum is 29.

Adding to 111103540421051 its reverse (150124045301111), we get a palindrome (261227585722162).

The spelling of 111103540421051 in words is "one hundred eleven trillion, one hundred three billion, five hundred forty million, four hundred twenty-one thousand, fifty-one".