12783511234 has 32 divisors (see below), whose sum is σ = 21126801024. Its totient is φ = 5765410560.

The previous prime is 12783511231. The next prime is 12783511243. The reversal of 12783511234 is 43211538721.

It is a junction number, because it is equal to n+sod(n) for n = 12783511193 and 12783511202.

It is not an unprimeable number, because it can be changed into a prime (12783511231) 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, 177957 + ... + 239239.

It is an arithmetic number, because the mean of its divisors is an integer number (660212532).

Almost surely, 2^12783511234 is an apocalyptic number.

12783511234 is a deficient number, since it is larger than the sum of its proper divisors (8343289790).

12783511234 is a wasteful number, since it uses less digits than its factorization.

12783511234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61482.

The product of its digits is 40320, while the sum is 37.

The spelling of 12783511234 in words is "twelve billion, seven hundred eighty-three million, five hundred eleven thousand, two hundred thirty-four".