30120101023 has 4 divisors (see below), whose sum is σ = 30135036160. Its totient is φ = 30105165888.

The previous prime is 30120100973. The next prime is 30120101087. The reversal of 30120101023 is 32010102103.

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-30120101023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30120100994 and 30120101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120131023) 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, 7464543 + ... + 7468576.

It is an arithmetic number, because the mean of its divisors is an integer number (7533759040).

Almost surely, 2^30120101023 is an apocalyptic number.

30120101023 is a deficient number, since it is larger than the sum of its proper divisors (14935137).

30120101023 is a wasteful number, since it uses less digits than its factorization.

30120101023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14935136.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30120101023 its reverse (32010102103), we get a palindrome (62130203126).

The spelling of 30120101023 in words is "thirty billion, one hundred twenty million, one hundred one thousand, twenty-three".