1113444111531 has 8 divisors (see below), whose sum is σ = 1571921098704. Its totient is φ = 698631599360.

The previous prime is 1113444111509. The next prime is 1113444111541. The reversal of 1113444111531 is 1351114443111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1113444111531 - 2⁶ = 1113444111467 is a prime.

It is a super-2 number, since 2×1113444111531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1113444111541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10916118690 + ... + 10916118791.

It is an arithmetic number, because the mean of its divisors is an integer number (196490137338).

Almost surely, 2^{1113444111531} is an apocalyptic number.

1113444111531 is a deficient number, since it is larger than the sum of its proper divisors (458476987173).

1113444111531 is a wasteful number, since it uses less digits than its factorization.

1113444111531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21832237501.

The product of its digits is 2880, while the sum is 30.

Adding to 1113444111531 its reverse (1351114443111), we get a palindrome (2464558554642).

The spelling of 1113444111531 in words is "one trillion, one hundred thirteen billion, four hundred forty-four million, one hundred eleven thousand, five hundred thirty-one".