20133223036 has 6 divisors (see below), whose sum is σ = 35233140320. Its totient is φ = 10066611516.

The previous prime is 20133223013. The next prime is 20133223037. The reversal of 20133223036 is 63032233102.

It is a self number, because there is not a number n which added to its sum of digits gives 20133223036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133223037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2516652876 + ... + 2516652883.

Almost surely, 2^20133223036 is an apocalyptic number.

It is an amenable number.

20133223036 is a deficient number, since it is larger than the sum of its proper divisors (15099917284).

20133223036 is a wasteful number, since it uses less digits than its factorization.

20133223036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033305763 (or 5033305761 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20133223036 its reverse (63032233102), we get a palindrome (83165456138).

The spelling of 20133223036 in words is "twenty billion, one hundred thirty-three million, two hundred twenty-three thousand, thirty-six".