20531032010 has 16 divisors (see below), whose sum is σ = 36957490272. Its totient is φ = 8212050000.

The previous prime is 20531032003. The next prime is 20531032013. The reversal of 20531032010 is 1023013502.

It is a self number, because there is not a number n which added to its sum of digits gives 20531032010.

It is not an unprimeable number, because it can be changed into a prime (20531032013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410885 + ... + 458135.

It is an arithmetic number, because the mean of its divisors is an integer number (2309843142).

Almost surely, 2^20531032010 is an apocalyptic number.

20531032010 is a deficient number, since it is larger than the sum of its proper divisors (16426458262).

20531032010 is a wasteful number, since it uses less digits than its factorization.

20531032010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90709.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 20531032010 its reverse (1023013502), we get a palindrome (21554045512).

The spelling of 20531032010 in words is "twenty billion, five hundred thirty-one million, thirty-two thousand, ten".