1113211042 has 4 divisors (see below), whose sum is σ = 1669816566. Its totient is φ = 556605520.

The previous prime is 1113211037. The next prime is 1113211061. The reversal of 1113211042 is 2401123111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2401123111 = 23 ⋅104396657.

It can be written as a sum of positive squares in only one way, i.e., 826620001 + 286591041 = 28751^2 + 16929^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278302759 + ... + 278302762.

Almost surely, 2^1113211042 is an apocalyptic number.

1113211042 is a deficient number, since it is larger than the sum of its proper divisors (556605524).

1113211042 is an equidigital number, since it uses as much as digits as its factorization.

1113211042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556605523.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1113211042 is about 33364.8174279435. The cubic root of 1113211042 is about 1036.3962553744.

Adding to 1113211042 its reverse (2401123111), we get a palindrome (3514334153).

The spelling of 1113211042 in words is "one billion, one hundred thirteen million, two hundred eleven thousand, forty-two".