1111142369 has 8 divisors (see below), whose sum is σ = 1135330560. Its totient is φ = 1086977056.

The previous prime is 1111142341. The next prime is 1111142399. The reversal of 1111142369 is 9632411111.

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 1111142369 - 2⁸ = 1111142113 is a prime.

It is a super-2 number, since 2×1111142369² = 2469274728373864322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111142399) 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, 123932 + ... + 132594.

It is an arithmetic number, because the mean of its divisors is an integer number (141916320).

Almost surely, 2^1111142369 is an apocalyptic number.

It is an amenable number.

1111142369 is a deficient number, since it is larger than the sum of its proper divisors (24188191).

1111142369 is an equidigital number, since it uses as much as digits as its factorization.

1111142369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11439.

The product of its digits is 1296, while the sum is 29.

The square root of 1111142369 is about 33333.8021983692. The cubic root of 1111142369 is about 1035.7538811131.

The spelling of 1111142369 in words is "one billion, one hundred eleven million, one hundred forty-two thousand, three hundred sixty-nine".