111121210413 has 12 divisors (see below), whose sum is σ = 169950086748. Its totient is φ = 69723112320.

The previous prime is 111121210349. The next prime is 111121210423. The reversal of 111121210413 is 314012121111.

111121210413 is a `hidden beast` number, since 11 + 11 + 21 + 210 + 413 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32921562249 + 78199648164 = 181443^2 + 279642^2 .

It is not a de Polignac number, because 111121210413 - 2⁶ = 111121210349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121210423) 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, 363141058 + ... + 363141363.

It is an arithmetic number, because the mean of its divisors is an integer number (14162507229).

Almost surely, 2^111121210413 is an apocalyptic number.

It is an amenable number.

111121210413 is a deficient number, since it is larger than the sum of its proper divisors (58828876335).

111121210413 is a wasteful number, since it uses less digits than its factorization.

111121210413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726282444 (or 726282441 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 111121210413 its reverse (314012121111), we get a palindrome (425133331524).

The spelling of 111121210413 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, four hundred thirteen".