126321120010 has 16 divisors (see below), whose sum is σ = 235218637800. Its totient is φ = 48786087616.

The previous prime is 126321119993. The next prime is 126321120011. The reversal of 126321120010 is 10021123621.

It can be written as a sum of positive squares in 4 ways, for example, as 110404017441 + 15917102569 = 332271^2 + 126163^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126321120010.

It is not an unprimeable number, because it can be changed into a prime (126321120011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217794745 + ... + 217795324.

Almost surely, 2^126321120010 is an apocalyptic number.

126321120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126321120010 is a deficient number, since it is larger than the sum of its proper divisors (108897517790).

126321120010 is a wasteful number, since it uses less digits than its factorization.

126321120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435590105.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 126321120010 its reverse (10021123621), we get a palindrome (136342243631).

The spelling of 126321120010 in words is "one hundred twenty-six billion, three hundred twenty-one million, one hundred twenty thousand, ten".