21503431114010 has 32 divisors (see below), whose sum is σ = 39893482141632. Its totient is φ = 8340100744320.

The previous prime is 21503431113977. The next prime is 21503431114019. The reversal of 21503431114010 is 1041113430512.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21503431114019) 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, 160814744 + ... + 160948403.

It is an arithmetic number, because the mean of its divisors is an integer number (1246671316926).

Almost surely, 2^{21503431114010} is an apocalyptic number.

21503431114010 is a deficient number, since it is larger than the sum of its proper divisors (18390051027622).

21503431114010 is a wasteful number, since it uses less digits than its factorization.

21503431114010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321763358.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 21503431114010 its reverse (1041113430512), we get a palindrome (22544544544522).

The spelling of 21503431114010 in words is "twenty-one trillion, five hundred three billion, four hundred thirty-one million, one hundred fourteen thousand, ten".