111133121331 has 8 divisors (see below), whose sum is σ = 155976310720. Its totient is φ = 70189339752.

The previous prime is 111133121321. The next prime is 111133121339. The reversal of 111133121331 is 133121331111.

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

It is not a de Polignac number, because 111133121331 - 2²³ = 111124732723 is a prime.

It is a super-2 number, since 2×111133121331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111133121298 and 111133121307.

It is not an unprimeable number, because it can be changed into a prime (111133121339) 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, 974851885 + ... + 974851998.

It is an arithmetic number, because the mean of its divisors is an integer number (19497038840).

Almost surely, 2^111133121331 is an apocalyptic number.

111133121331 is a deficient number, since it is larger than the sum of its proper divisors (44843189389).

111133121331 is a wasteful number, since it uses less digits than its factorization.

111133121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949703905.

The product of its digits is 162, while the sum is 21.

Adding to 111133121331 its reverse (133121331111), we get a palindrome (244254452442).

It can be divided in two parts, 111 and 133121331, that multiplied together give a palindrome (14776467741).

The spelling of 111133121331 in words is "one hundred eleven billion, one hundred thirty-three million, one hundred twenty-one thousand, three hundred thirty-one".