21111303010 has 16 divisors (see below), whose sum is σ = 43428966336. Its totient is φ = 7238161008.

The previous prime is 21111303007. The next prime is 21111303013. The reversal of 21111303010 is 1030311112.

It is an interprime number because it is at equal distance from previous prime (21111303007) and next prime (21111303013).

It is a super-2 number, since 2×21111303010² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21111303013) 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, 150794952 + ... + 150795091.

It is an arithmetic number, because the mean of its divisors is an integer number (2714310396).

Almost surely, 2^21111303010 is an apocalyptic number.

21111303010 is an abundant number, since it is smaller than the sum of its proper divisors (22317663326).

21111303010 is a wasteful number, since it uses less digits than its factorization.

21111303010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301590057.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 21111303010 its reverse (1030311112), we get a palindrome (22141614122).

The spelling of 21111303010 in words is "twenty-one billion, one hundred eleven million, three hundred three thousand, ten".