102111211003 has 4 divisors (see below), whose sum is σ = 102761601040. Its totient is φ = 101460820968.

The previous prime is 102111210973. The next prime is 102111211021. The reversal of 102111211003 is 300112111201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300112111201 = 7 ⋅42873158743.

It is a cyclic number.

It is not a de Polignac number, because 102111211003 - 2⁹ = 102111210491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102111211303) 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, 325194783 + ... + 325195096.

It is an arithmetic number, because the mean of its divisors is an integer number (25690400260).

Almost surely, 2^102111211003 is an apocalyptic number.

102111211003 is a deficient number, since it is larger than the sum of its proper divisors (650390037).

102111211003 is an equidigital number, since it uses as much as digits as its factorization.

102111211003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650390036.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 102111211003 its reverse (300112111201), we get a palindrome (402223322204).

The spelling of 102111211003 in words is "one hundred two billion, one hundred eleven million, two hundred eleven thousand, three".