20233133512 has 8 divisors (see below), whose sum is σ = 37937125350. Its totient is φ = 10116566752.

The previous prime is 20233133509. The next prime is 20233133563. The reversal of 20233133512 is 21533133202.

It can be written as a sum of positive squares in only one way, i.e., 18503072676 + 1730060836 = 136026^2 + 41594^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264570837 + ... + 1264570852.

Almost surely, 2^20233133512 is an apocalyptic number.

It is an amenable number.

20233133512 is a deficient number, since it is larger than the sum of its proper divisors (17703991838).

20233133512 is a wasteful number, since it uses less digits than its factorization.

20233133512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2529141695 (or 2529141691 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 20233133512 its reverse (21533133202), we get a palindrome (41766266714).

The spelling of 20233133512 in words is "twenty billion, two hundred thirty-three million, one hundred thirty-three thousand, five hundred twelve".