20011223410 has 8 divisors (see below), whose sum is σ = 36020202156. Its totient is φ = 8004489360.

The previous prime is 20011223399. The next prime is 20011223411. The reversal of 20011223410 is 1432211002.

It can be written as a sum of positive squares in 2 ways, for example, as 19765266921 + 245956489 = 140589^2 + 15683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20011223411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000561161 + ... + 1000561180.

Almost surely, 2^20011223410 is an apocalyptic number.

20011223410 is a deficient number, since it is larger than the sum of its proper divisors (16008978746).

20011223410 is a wasteful number, since it uses less digits than its factorization.

20011223410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001122348.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20011223410 its reverse (1432211002), we get a palindrome (21443434412).

The spelling of 20011223410 in words is "twenty billion, eleven million, two hundred twenty-three thousand, four hundred ten".