1211142434 has 8 divisors (see below), whose sum is σ = 1846496028. Its totient is φ = 595643760.

The previous prime is 1211142421. The next prime is 1211142463. The reversal of 1211142434 is 4342411121.

It can be written as a sum of positive squares in 2 ways, for example, as 942674209 + 268468225 = 30703^2 + 16385^2 .

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, 4963577 + ... + 4963820.

Almost surely, 2^1211142434 is an apocalyptic number.

1211142434 is a deficient number, since it is larger than the sum of its proper divisors (635353594).

1211142434 is an equidigital number, since it uses as much as digits as its factorization.

1211142434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9927460.

The product of its digits is 768, while the sum is 23.

The square root of 1211142434 is about 34801.4717217534. The cubic root of 1211142434 is about 1065.9374977287.

Adding to 1211142434 its reverse (4342411121), we get a palindrome (5553553555).

It can be divided in two parts, 12111 and 42434, that added together give a palindrome (54545).

The spelling of 1211142434 in words is "one billion, two hundred eleven million, one hundred forty-two thousand, four hundred thirty-four".