Adding to 13021431234 its reverse (43213412031), we get a palindrome (56234843265).
It is a happy number.
It is an unprimeable number.
Almost surely, 213021431234 is an apocalyptic number.
13021431234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13021431234 is a wasteful number, since it uses less digits than its factorization.
13021431234 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16317614.
The spelling of 13021431234 in words is "thirteen billion, twenty-one million, four hundred thirty-one thousand, two hundred thirty-four".