21310233110 has 16 divisors (see below), whose sum is σ = 39082164336. Its totient is φ = 8363261088.

The previous prime is 21310233059. The next prime is 21310233121. The reversal of 21310233110 is 1133201312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20103464 + ... + 20104523.

It is an arithmetic number, because the mean of its divisors is an integer number (2442635271).

Almost surely, 2^21310233110 is an apocalyptic number.

21310233110 is a deficient number, since it is larger than the sum of its proper divisors (17771931226).

21310233110 is a wasteful number, since it uses less digits than its factorization.

21310233110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40208047.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21310233110 its reverse (1133201312), we get a palindrome (22443434422).

The spelling of 21310233110 in words is "twenty-one billion, three hundred ten million, two hundred thirty-three thousand, one hundred ten".