20100001210103 has 32 divisors (see below), whose sum is σ = 22001939435520. Its totient is φ = 18288787345920.

The previous prime is 20100001210067. The next prime is 20100001210111. The reversal of 20100001210103 is 30101210000102.

It is a cyclic number.

It is not a de Polignac number, because 20100001210103 - 2¹⁴ = 20100001193719 is a prime.

It is a super-2 number, since 2×20100001210103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100001210903) 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, 112435676 + ... + 112614302.

It is an arithmetic number, because the mean of its divisors is an integer number (687560607360).

Almost surely, 2^{20100001210103} is an apocalyptic number.

20100001210103 is a deficient number, since it is larger than the sum of its proper divisors (1901938225417).

20100001210103 is a wasteful number, since it uses less digits than its factorization.

20100001210103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180527.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20100001210103 its reverse (30101210000102), we get a palindrome (50201211210205).

The spelling of 20100001210103 in words is "twenty trillion, one hundred billion, one million, two hundred ten thousand, one hundred three".