1200311434 has 16 divisors (see below), whose sum is σ = 2165976000. Its totient is φ = 487344384.

The previous prime is 1200311429. The next prime is 1200311443. The reversal of 1200311434 is 4341130021.

It is a super-2 number, since 2×1200311434² = 2881495077182272712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2255959 + ... + 2256490.

It is an arithmetic number, because the mean of its divisors is an integer number (135373500).

Almost surely, 2^1200311434 is an apocalyptic number.

1200311434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1200311434 is a deficient number, since it is larger than the sum of its proper divisors (965664566).

1200311434 is a wasteful number, since it uses less digits than its factorization.

1200311434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512477.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1200311434 is about 34645.5110223532. The cubic root of 1200311434 is about 1062.7504912334.

Adding to 1200311434 its reverse (4341130021), we get a palindrome (5541441455).

The spelling of 1200311434 in words is "one billion, two hundred million, three hundred eleven thousand, four hundred thirty-four".