111453031405 has 16 divisors (see below), whose sum is σ = 136752130224. Its totient is φ = 87168739840.

The previous prime is 111453031363. The next prime is 111453031411. The reversal of 111453031405 is 504130354111.

It can be written as a sum of positive squares in 8 ways, for example, as 368140969 + 111084890436 = 19187^2 + 333294^2 .

It is not a de Polignac number, because 111453031405 - 2¹¹ = 111453029357 is a prime.

It is a super-3 number, since 3×111453031405³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673894 + ... + 822823.

It is an arithmetic number, because the mean of its divisors is an integer number (8547008139).

Almost surely, 2^111453031405 is an apocalyptic number.

It is an amenable number.

111453031405 is a deficient number, since it is larger than the sum of its proper divisors (25299098819).

111453031405 is a wasteful number, since it uses less digits than its factorization.

111453031405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497056.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 111453031405 its reverse (504130354111), we get a palindrome (615583385516).

The spelling of 111453031405 in words is "one hundred eleven billion, four hundred fifty-three million, thirty-one thousand, four hundred five".