123000021302 has 4 divisors (see below), whose sum is σ = 184500031956. Its totient is φ = 61500010650.

The previous prime is 123000021301. The next prime is 123000021311. The reversal of 123000021302 is 203120000321.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123000021301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30750005324 + ... + 30750005327.

It is an arithmetic number, because the mean of its divisors is an integer number (46125007989).

Almost surely, 2^123000021302 is an apocalyptic number.

123000021302 is a deficient number, since it is larger than the sum of its proper divisors (61500010654).

123000021302 is an equidigital number, since it uses as much as digits as its factorization.

123000021302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61500010653.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 123000021302 its reverse (203120000321), we get a palindrome (326120021623).

The spelling of 123000021302 in words is "one hundred twenty-three billion, twenty-one thousand, three hundred two".