20502333234 has 48 divisors (see below), whose sum is σ = 47079840600. Its totient is φ = 6425940480.

The previous prime is 20502333223. The next prime is 20502333263. The reversal of 20502333234 is 43233320502.

It can be written as a sum of positive squares in 4 ways, for example, as 18800523225 + 1701810009 = 137115^2 + 41253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20502333198 and 20502333207.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293092 + ... + 356240.

Almost surely, 2^20502333234 is an apocalyptic number.

20502333234 is an abundant number, since it is smaller than the sum of its proper divisors (26577507366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20502333234 is a wasteful number, since it uses less digits than its factorization.

20502333234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64235 (or 64232 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 20502333234 its reverse (43233320502), we get a palindrome (63735653736).

The spelling of 20502333234 in words is "twenty billion, five hundred two million, three hundred thirty-three thousand, two hundred thirty-four".