21113103310 has 16 divisors (see below), whose sum is σ = 40926938976. Its totient is φ = 7795607328.

The previous prime is 21113103307. The next prime is 21113103313. The reversal of 21113103310 is 1330131112.

It is an interprime number because it is at equal distance from previous prime (21113103307) and next prime (21113103313).

It is a super-2 number, since 2×21113103310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113103313) 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, 81204114 + ... + 81204373.

It is an arithmetic number, because the mean of its divisors is an integer number (2557933686).

Almost surely, 2^21113103310 is an apocalyptic number.

21113103310 is a deficient number, since it is larger than the sum of its proper divisors (19813835666).

21113103310 is a wasteful number, since it uses less digits than its factorization.

21113103310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162408507.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 21113103310 its reverse (1330131112), we get a palindrome (22443234422).

The spelling of 21113103310 in words is "twenty-one billion, one hundred thirteen million, one hundred three thousand, three hundred ten".