20033231010 has 32 divisors (see below), whose sum is σ = 51778198080. Its totient is φ = 4931256768.

The previous prime is 20033230981. The next prime is 20033231017. The reversal of 20033231010 is 1013233002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20033231017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25683240 + ... + 25684019.

It is an arithmetic number, because the mean of its divisors is an integer number (1618068690).

Almost surely, 2^20033231010 is an apocalyptic number.

20033231010 is an abundant number, since it is smaller than the sum of its proper divisors (31744967070).

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

20033231010 is a wasteful number, since it uses less digits than its factorization.

20033231010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51367282.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20033231010 its reverse (1013233002), we get a palindrome (21046464012).

The spelling of 20033231010 in words is "twenty billion, thirty-three million, two hundred thirty-one thousand, ten".