20011320610 has 16 divisors (see below), whose sum is σ = 36022732416. Its totient is φ = 8004004848.

The previous prime is 20011320577. The next prime is 20011320643. The reversal of 20011320610 is 1602311002.

It is an interprime number because it is at equal distance from previous prime (20011320577) and next prime (20011320643).

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, 120247 + ... + 233413.

It is an arithmetic number, because the mean of its divisors is an integer number (2251420776).

Almost surely, 2^20011320610 is an apocalyptic number.

20011320610 is a deficient number, since it is larger than the sum of its proper divisors (16011411806).

20011320610 is a wasteful number, since it uses less digits than its factorization.

20011320610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130857.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20011320610 its reverse (1602311002), we get a palindrome (21613631612).

The spelling of 20011320610 in words is "twenty billion, eleven million, three hundred twenty thousand, six hundred ten".