1200120034 has 4 divisors (see below), whose sum is σ = 1800180054. Its totient is φ = 600060016.

The previous prime is 1200120017. The next prime is 1200120037. The reversal of 1200120034 is 4300210021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1159606809 + 40513225 = 34053^2 + 6365^2 .

It is a super-2 number, since 2×1200120034² = 2880576192016322312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200119996 and 1200120023.

It is not an unprimeable number, because it can be changed into a prime (1200120037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300030007 + ... + 300030010.

Almost surely, 2^1200120034 is an apocalyptic number.

1200120034 is a deficient number, since it is larger than the sum of its proper divisors (600060020).

1200120034 is an equidigital number, since it uses as much as digits as its factorization.

1200120034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600060019.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1200120034 is about 34642.7486496092. The cubic root of 1200120034 is about 1062.6939999898.

Adding to 1200120034 its reverse (4300210021), we get a palindrome (5500330055).

The spelling of 1200120034 in words is "one billion, two hundred million, one hundred twenty thousand, thirty-four".