30111220023 has 8 divisors (see below), whose sum is σ = 40296443136. Its totient is φ = 20000071800.

The previous prime is 30111220021. The next prime is 30111220039. The reversal of 30111220023 is 32002211103.

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

It is not a de Polignac number, because 30111220023 - 2¹ = 30111220021 is a prime.

It is a super-2 number, since 2×30111220023² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30111219984 and 30111220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111220021) 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, 18517773 + ... + 18519398.

It is an arithmetic number, because the mean of its divisors is an integer number (5037055392).

Almost surely, 2^30111220023 is an apocalyptic number.

30111220023 is a deficient number, since it is larger than the sum of its proper divisors (10185223113).

30111220023 is a wasteful number, since it uses less digits than its factorization.

30111220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37037445.

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

Adding to 30111220023 its reverse (32002211103), we get a palindrome (62113431126).

The spelling of 30111220023 in words is "thirty billion, one hundred eleven million, two hundred twenty thousand, twenty-three".