30020010002123 has 8 divisors (see below), whose sum is σ = 30832116945888. Its totient is φ = 29207942812224.

The previous prime is 30020010002119. The next prime is 30020010002173. The reversal of 30020010002123 is 32120001002003.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30020010002123 - 2² = 30020010002119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30020010002098 and 30020010002107.

It is not an unprimeable number, because it can be changed into a prime (30020010002173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8404586 + ... + 11431407.

It is an arithmetic number, because the mean of its divisors is an integer number (3854014618236).

Almost surely, 2^{30020010002123} is an apocalyptic number.

30020010002123 is a deficient number, since it is larger than the sum of its proper divisors (812106943765).

30020010002123 is a wasteful number, since it uses less digits than its factorization.

30020010002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19876933.

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

Adding to 30020010002123 its reverse (32120001002003), we get a palindrome (62140011004126).

The spelling of 30020010002123 in words is "thirty trillion, twenty billion, ten million, two thousand, one hundred twenty-three".