2102003232123 has 16 divisors (see below), whose sum is σ = 2844657077760. Its totient is φ = 1380344719776.

The previous prime is 2102003232107. The next prime is 2102003232137. The reversal of 2102003232123 is 3212323002012.

It is a happy number.

It is not a de Polignac number, because 2102003232123 - 2⁴ = 2102003232107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102003232123.

It is not an unprimeable number, because it can be changed into a prime (2102003232103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3534961 + ... + 4086557.

It is an arithmetic number, because the mean of its divisors is an integer number (177791067360).

Almost surely, 2^{2102003232123} is an apocalyptic number.

2102003232123 is a deficient number, since it is larger than the sum of its proper divisors (742653845637).

2102003232123 is a wasteful number, since it uses less digits than its factorization.

2102003232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570626.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2102003232123 its reverse (3212323002012), we get a palindrome (5314326234135).

The spelling of 2102003232123 in words is "two trillion, one hundred two billion, three million, two hundred thirty-two thousand, one hundred twenty-three".