12340203134 has 64 divisors (see below), whose sum is σ = 23224320000. Its totient is φ = 4794951168.

The previous prime is 12340203131. The next prime is 12340203173. The reversal of 12340203134 is 43130204321.

It is a super-2 number, since 2×12340203134² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12340203131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3442307 + ... + 3445889.

It is an arithmetic number, because the mean of its divisors is an integer number (362880000).

Almost surely, 2^12340203134 is an apocalyptic number.

12340203134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12340203134 is a deficient number, since it is larger than the sum of its proper divisors (10884116866).

12340203134 is a wasteful number, since it uses less digits than its factorization.

12340203134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12340203134 its reverse (43130204321), we get a palindrome (55470407455).

The spelling of 12340203134 in words is "twelve billion, three hundred forty million, two hundred three thousand, one hundred thirty-four".