1213134810 has 32 divisors (see below), whose sum is σ = 2913658560. Its totient is φ = 323265408.

The previous prime is 1213134809. The next prime is 1213134817. The reversal of 1213134810 is 184313121.

It is a super-2 number, since 2×1213134810² = 2943392134467472200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1213134817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28881 + ... + 57099.

It is an arithmetic number, because the mean of its divisors is an integer number (91051830).

Almost surely, 2^1213134810 is an apocalyptic number.

1213134810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213134810 is an abundant number, since it is smaller than the sum of its proper divisors (1700523750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213134810 is a wasteful number, since it uses less digits than its factorization.

1213134810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29662.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1213134810 is about 34830.0848405513. The cubic root of 1213134810 is about 1066.5216802720.

Adding to 1213134810 its reverse (184313121), we get a palindrome (1397447931).

The spelling of 1213134810 in words is "one billion, two hundred thirteen million, one hundred thirty-four thousand, eight hundred ten".