20530435102 has 8 divisors (see below), whose sum is σ = 31857571800. Its totient is φ = 9911244504.

The previous prime is 20530435039. The next prime is 20530435109. The reversal of 20530435102 is 20153403502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530435109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176986452 + ... + 176986567.

It is an arithmetic number, because the mean of its divisors is an integer number (3982196475).

Almost surely, 2^20530435102 is an apocalyptic number.

20530435102 is a deficient number, since it is larger than the sum of its proper divisors (11327136698).

20530435102 is a wasteful number, since it uses less digits than its factorization.

20530435102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353973050.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20530435102 its reverse (20153403502), we get a palindrome (40683838604).

The spelling of 20530435102 in words is "twenty billion, five hundred thirty million, four hundred thirty-five thousand, one hundred two".