20011232012 has 24 divisors (see below), whose sum is σ = 35432968704. Its totient is φ = 9888141312.

The previous prime is 20011231969. The next prime is 20011232029. The reversal of 20011232012 is 21023211002.

It is a happy number.

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, 53918 + ... + 207194.

It is an arithmetic number, because the mean of its divisors is an integer number (1476373696).

Almost surely, 2^20011232012 is an apocalyptic number.

It is an amenable number.

20011232012 is a deficient number, since it is larger than the sum of its proper divisors (15421736692).

20011232012 is a wasteful number, since it uses less digits than its factorization.

20011232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153665 (or 153663 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20011232012 its reverse (21023211002), we get a palindrome (41034443014).

The spelling of 20011232012 in words is "twenty billion, eleven million, two hundred thirty-two thousand, twelve".