123021001203 has 16 divisors (see below), whose sum is σ = 172743014400. Its totient is φ = 77660592480.

The previous prime is 123021001199. The next prime is 123021001219. The reversal of 123021001203 is 302100120321.

It is not a de Polignac number, because 123021001203 - 2² = 123021001199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123021005203) 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, 390868 + ... + 631521.

It is an arithmetic number, because the mean of its divisors is an integer number (10796438400).

Almost surely, 2^123021001203 is an apocalyptic number.

123021001203 is a deficient number, since it is larger than the sum of its proper divisors (49722013197).

123021001203 is a wasteful number, since it uses less digits than its factorization.

123021001203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024522.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123021001203 its reverse (302100120321), we get a palindrome (425121121524).

The spelling of 123021001203 in words is "one hundred twenty-three billion, twenty-one million, one thousand, two hundred three".