111321123101 has 16 divisors (see below), whose sum is σ = 121101826560. Its totient is φ = 101940560640.

The previous prime is 111321123083. The next prime is 111321123107. The reversal of 111321123101 is 101321123111.

It is a cyclic number.

It is not a de Polignac number, because 111321123101 - 2¹⁴ = 111321106717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111321123101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111321123107) 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, 394505 + ... + 615041.

It is an arithmetic number, because the mean of its divisors is an integer number (7568864160).

Almost surely, 2^111321123101 is an apocalyptic number.

It is an amenable number.

111321123101 is a deficient number, since it is larger than the sum of its proper divisors (9780703459).

111321123101 is a wasteful number, since it uses less digits than its factorization.

111321123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221444.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 111321123101 its reverse (101321123111), we get a palindrome (212642246212).

The spelling of 111321123101 in words is "one hundred eleven billion, three hundred twenty-one million, one hundred twenty-three thousand, one hundred one".