11431221010 has 32 divisors (see below), whose sum is σ = 22453542144. Its totient is φ = 4155552000.

The previous prime is 11431221001. The next prime is 11431221059. The reversal of 11431221010 is 1012213411.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399895 + ... + 427525.

It is an arithmetic number, because the mean of its divisors is an integer number (701673192).

Almost surely, 2^11431221010 is an apocalyptic number.

11431221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11431221010 is a deficient number, since it is larger than the sum of its proper divisors (11022321134).

11431221010 is a wasteful number, since it uses less digits than its factorization.

11431221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31410.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11431221010 its reverse (1012213411), we get a palindrome (12443434421).

The spelling of 11431221010 in words is "eleven billion, four hundred thirty-one million, two hundred twenty-one thousand, ten".