21031201010 has 16 divisors (see below), whose sum is σ = 37861084800. Its totient is φ = 8411386416.

The previous prime is 21031201003. The next prime is 21031201021. The reversal of 21031201010 is 1010213012.

21031201010 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×21031201010² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21031200982 and 21031201000.

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, 53600 + ... + 211979.

It is an arithmetic number, because the mean of its divisors is an integer number (2366317800).

Almost surely, 2^21031201010 is an apocalyptic number.

21031201010 is a deficient number, since it is larger than the sum of its proper divisors (16829883790).

21031201010 is a wasteful number, since it uses less digits than its factorization.

21031201010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273505.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21031201010 its reverse (1010213012), we get a palindrome (22041414022).

The spelling of 21031201010 in words is "twenty-one billion, thirty-one million, two hundred one thousand, ten".