201102102023 has 4 divisors (see below), whose sum is σ = 201129668880. Its totient is φ = 201074535168.

The previous prime is 201102101951. The next prime is 201102102067. The reversal of 201102102023 is 320201201102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201102102023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201102101989 and 201102102007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102102323) 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, 13772483 + ... + 13787076.

It is an arithmetic number, because the mean of its divisors is an integer number (50282417220).

Almost surely, 2^201102102023 is an apocalyptic number.

201102102023 is a deficient number, since it is larger than the sum of its proper divisors (27566857).

201102102023 is an equidigital number, since it uses as much as digits as its factorization.

201102102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27566856.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 201102102023 its reverse (320201201102), we get a palindrome (521303303125).

The spelling of 201102102023 in words is "two hundred one billion, one hundred two million, one hundred two thousand, twenty-three".