20100123033330 has 64 divisors (see below), whose sum is σ = 48319070641920. Its totient is φ = 5351287070976.

The previous prime is 20100123033311. The next prime is 20100123033337. The reversal of 20100123033330 is 3333032100102.

It is a junction number, because it is equal to n+sod(n) for n = 20100123033297 and 20100123033306.

It is not an unprimeable number, because it can be changed into a prime (20100123033337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45459699 + ... + 45899721.

It is an arithmetic number, because the mean of its divisors is an integer number (754985478780).

Almost surely, 2^{20100123033330} is an apocalyptic number.

20100123033330 is an abundant number, since it is smaller than the sum of its proper divisors (28218947608590).

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

20100123033330 is a wasteful number, since it uses less digits than its factorization.

20100123033330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442515.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20100123033330 its reverse (3333032100102), we get a palindrome (23433155133432).

The spelling of 20100123033330 in words is "twenty trillion, one hundred billion, one hundred twenty-three million, thirty-three thousand, three hundred thirty".