111774031317421 has 16 divisors (see below), whose sum is σ = 122909532655680. Its totient is φ = 100801917694080.

The previous prime is 111774031317419. The next prime is 111774031317439. The reversal of 111774031317421 is 124713130477111.

It is a cyclic number.

It is not a de Polignac number, because 111774031317421 - 2¹ = 111774031317419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111774031317451) 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, 23219346 + ... + 27616771.

It is an arithmetic number, because the mean of its divisors is an integer number (7681845790980).

Almost surely, 2^{111774031317421} is an apocalyptic number.

111774031317421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111774031317421 is a deficient number, since it is larger than the sum of its proper divisors (11135501338259).

111774031317421 is a wasteful number, since it uses less digits than its factorization.

111774031317421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50837724.

The product of its (nonzero) digits is 98784, while the sum is 43.

The spelling of 111774031317421 in words is "one hundred eleven trillion, seven hundred seventy-four billion, thirty-one million, three hundred seventeen thousand, four hundred twenty-one".