1111021113 has 8 divisors (see below), whose sum is σ = 1482890976. Its totient is φ = 739916000.

The previous prime is 1111021103. The next prime is 1111021127. The reversal of 1111021113 is 3111201111.

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 1111021113 - 2⁸ = 1111020857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111021103) 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, 187788 + ... + 193613.

It is an arithmetic number, because the mean of its divisors is an integer number (185361372).

Almost surely, 2^1111021113 is an apocalyptic number.

It is an amenable number.

1111021113 is a deficient number, since it is larger than the sum of its proper divisors (371869863).

1111021113 is an equidigital number, since it uses as much as digits as its factorization.

1111021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382375.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1111021113 is about 33331.9833343292. The cubic root of 1111021113 is about 1035.7162033906.

Adding to 1111021113 its reverse (3111201111), we get a palindrome (4222222224).

It can be divided in two parts, 11110 and 21113, that added together give a palindrome (32223).

The spelling of 1111021113 in words is "one billion, one hundred eleven million, twenty-one thousand, one hundred thirteen".