20010235534 has 4 divisors (see below), whose sum is σ = 30015353304. Its totient is φ = 10005117766.

The previous prime is 20010235507. The next prime is 20010235537. The reversal of 20010235534 is 43553201002.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20010235534² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20010235499 and 20010235508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010235537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002558882 + ... + 5002558885.

It is an arithmetic number, because the mean of its divisors is an integer number (7503838326).

Almost surely, 2^20010235534 is an apocalyptic number.

20010235534 is a deficient number, since it is larger than the sum of its proper divisors (10005117770).

20010235534 is a wasteful number, since it uses less digits than its factorization.

20010235534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005117769.

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

Adding to 20010235534 its reverse (43553201002), we get a palindrome (63563436536).

The spelling of 20010235534 in words is "twenty billion, ten million, two hundred thirty-five thousand, five hundred thirty-four".