10111021212103 has 16 divisors (see below), whose sum is σ = 11626485497856. Its totient is φ = 8613397388160.

The previous prime is 10111021212007. The next prime is 10111021212151. The reversal of 10111021212103 is 30121212011101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10111021212103 - 2¹³ = 10111021203911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111021212403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953426 + ... + 4902847.

It is an arithmetic number, because the mean of its divisors is an integer number (726655343616).

Almost surely, 2^{10111021212103} is an apocalyptic number.

10111021212103 is a deficient number, since it is larger than the sum of its proper divisors (1515464285753).

10111021212103 is a wasteful number, since it uses less digits than its factorization.

10111021212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6857574.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 10111021212103 its reverse (30121212011101), we get a palindrome (40232233223204).

The spelling of 10111021212103 in words is "ten trillion, one hundred eleven billion, twenty-one million, two hundred twelve thousand, one hundred three".