102111121302103 has 4 divisors (see below), whose sum is σ = 102890595510648. Its totient is φ = 101331647093560.

The previous prime is 102111121302083. The next prime is 102111121302119. The reversal of 102111121302103 is 301203121111201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102111121302103 - 2²¹ = 102111119204951 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 (102111121302703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389737104076 + ... + 389737104337.

It is an arithmetic number, because the mean of its divisors is an integer number (25722648877662).

Almost surely, 2^{102111121302103} is an apocalyptic number.

102111121302103 is a deficient number, since it is larger than the sum of its proper divisors (779474208545).

102111121302103 is an equidigital number, since it uses as much as digits as its factorization.

102111121302103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779474208544.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 102111121302103 its reverse (301203121111201), we get a palindrome (403314242413304).

The spelling of 102111121302103 in words is "one hundred two trillion, one hundred eleven billion, one hundred twenty-one million, three hundred two thousand, one hundred three".