1211313442 has 8 divisors (see below), whose sum is σ = 1825582032. Its totient is φ = 602786100.

The previous prime is 1211313413. The next prime is 1211313451. The reversal of 1211313442 is 2443131121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434784 + ... + 1435627.

It is an arithmetic number, because the mean of its divisors is an integer number (228197754).

Almost surely, 2^1211313442 is an apocalyptic number.

1211313442 is a deficient number, since it is larger than the sum of its proper divisors (614268590).

1211313442 is a wasteful number, since it uses less digits than its factorization.

1211313442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870624.

The product of its digits is 576, while the sum is 22.

The square root of 1211313442 is about 34803.9285426229. The cubic root of 1211313442 is about 1065.9876639343.

Adding to 1211313442 its reverse (2443131121), we get a palindrome (3654444563).

The spelling of 1211313442 in words is "one billion, two hundred eleven million, three hundred thirteen thousand, four hundred forty-two".