20133432011 has 32 divisors (see below), whose sum is σ = 25491787776. Its totient is φ = 15446160000.

The previous prime is 20133431987. The next prime is 20133432041. The reversal of 20133432011 is 11023433102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133432011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20133432041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1400486 + ... + 1414788.

It is an arithmetic number, because the mean of its divisors is an integer number (796618368).

Almost surely, 2^20133432011 is an apocalyptic number.

20133432011 is a deficient number, since it is larger than the sum of its proper divisors (5358355765).

20133432011 is a wasteful number, since it uses less digits than its factorization.

20133432011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14603.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20133432011 its reverse (11023433102), we get a palindrome (31156865113).

The spelling of 20133432011 in words is "twenty billion, one hundred thirty-three million, four hundred thirty-two thousand, eleven".