20011233292 has 12 divisors (see below), whose sum is σ = 35089283376. Its totient is φ = 9985723760.

The previous prime is 20011233227. The next prime is 20011233293. The reversal of 20011233292 is 29233211002.

It is not an unprimeable number, because it can be changed into a prime (20011233293) 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, 4970959 + ... + 4974982.

It is an arithmetic number, because the mean of its divisors is an integer number (2924106948).

Almost surely, 2^20011233292 is an apocalyptic number.

It is an amenable number.

20011233292 is a deficient number, since it is larger than the sum of its proper divisors (15078050084).

20011233292 is a wasteful number, since it uses less digits than its factorization.

20011233292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9946448 (or 9946446 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20011233292 its reverse (29233211002), we get a palindrome (49244444294).

The spelling of 20011233292 in words is "twenty billion, eleven million, two hundred thirty-three thousand, two hundred ninety-two".