20010102331 has 16 divisors (see below), whose sum is σ = 21702726144. Its totient is φ = 18375686784.

The previous prime is 20010102313. The next prime is 20010102367. The reversal of 20010102331 is 13320101002.

It is not a de Polignac number, because 20010102331 - 2¹¹ = 20010100283 is a prime.

It is a super-2 number, since 2×20010102331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010102031) 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 in 15 ways as a sum of consecutive naturals, for example, 704650 + ... + 732496.

It is an arithmetic number, because the mean of its divisors is an integer number (1356420384).

Almost surely, 2^20010102331 is an apocalyptic number.

20010102331 is a deficient number, since it is larger than the sum of its proper divisors (1692623813).

20010102331 is a wasteful number, since it uses less digits than its factorization.

20010102331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28890.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20010102331 its reverse (13320101002), we get a palindrome (33330203333).

The spelling of 20010102331 in words is "twenty billion, ten million, one hundred two thousand, three hundred thirty-one".