20531051030 has 32 divisors (see below), whose sum is σ = 42331576320. Its totient is φ = 7023172320.

The previous prime is 20531050987. The next prime is 20531051059. The reversal of 20531051030 is 3015013502.

It is a junction number, because it is equal to n+sod(n) for n = 20531050993 and 20531051011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303326 + ... + 364785.

It is an arithmetic number, because the mean of its divisors is an integer number (1322861760).

Almost surely, 2^20531051030 is an apocalyptic number.

20531051030 is an abundant number, since it is smaller than the sum of its proper divisors (21800525290).

20531051030 is a wasteful number, since it uses less digits than its factorization.

20531051030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668564.

The product of its (nonzero) digits is 450, while the sum is 20.

Adding to 20531051030 its reverse (3015013502), we get a palindrome (23546064532).

The spelling of 20531051030 in words is "twenty billion, five hundred thirty-one million, fifty-one thousand, thirty".