1111401355401 has 32 divisors (see below), whose sum is σ = 1792944336000. Its totient is φ = 677732940864.

The previous prime is 1111401355397. The next prime is 1111401355429. The reversal of 1111401355401 is 1045531041111.

It is a happy number.

1111401355401 is a `hidden beast` number, since 1 + 1 + 114 + 0 + 1 + 3 + 5 + 540 + 1 = 666.

It is not a de Polignac number, because 1111401355401 - 2² = 1111401355397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1111401355451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37338130 + ... + 37367883.

It is an arithmetic number, because the mean of its divisors is an integer number (56029510500).

Almost surely, 2^{1111401355401} is an apocalyptic number.

It is an amenable number.

1111401355401 is a deficient number, since it is larger than the sum of its proper divisors (681542980599).

1111401355401 is a wasteful number, since it uses less digits than its factorization.

1111401355401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74706070 (or 74706064 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 1111401355401 its reverse (1045531041111), we get a palindrome (2156932396512).

The spelling of 1111401355401 in words is "one trillion, one hundred eleven billion, four hundred one million, three hundred fifty-five thousand, four hundred one".