1200213134 has 4 divisors (see below), whose sum is σ = 1800319704. Its totient is φ = 600106566.

The previous prime is 1200213127. The next prime is 1200213151. The reversal of 1200213134 is 4313120021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4313120021 = 7 ⋅616160003.

It is a super-2 number, since 2×1200213134² = 2881023134052203912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300053282 + ... + 300053285.

It is an arithmetic number, because the mean of its divisors is an integer number (450079926).

Almost surely, 2^1200213134 is an apocalyptic number.

1200213134 is a deficient number, since it is larger than the sum of its proper divisors (600106570).

1200213134 is an equidigital number, since it uses as much as digits as its factorization.

1200213134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600106569.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1200213134 is about 34644.0923390987. The cubic root of 1200213134 is about 1062.7214789781.

Adding to 1200213134 its reverse (4313120021), we get a palindrome (5513333155).

The spelling of 1200213134 in words is "one billion, two hundred million, two hundred thirteen thousand, one hundred thirty-four".