30021121023 has 8 divisors (see below), whose sum is σ = 40051728000. Its totient is φ = 20002297368.

The previous prime is 30021120991. The next prime is 30021121027. The reversal of 30021121023 is 32012112003.

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

It is not a de Polignac number, because 30021121023 - 2⁵ = 30021120991 is a prime.

It is a super-2 number, since 2×30021121023² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30021120993 and 30021121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021121027) 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, 2939883 + ... + 2950076.

It is an arithmetic number, because the mean of its divisors is an integer number (5006466000).

Almost surely, 2^30021121023 is an apocalyptic number.

30021121023 is a deficient number, since it is larger than the sum of its proper divisors (10030606977).

30021121023 is a wasteful number, since it uses less digits than its factorization.

30021121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5891661.

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

Adding to 30021121023 its reverse (32012112003), we get a palindrome (62033233026).

The spelling of 30021121023 in words is "thirty billion, twenty-one million, one hundred twenty-one thousand, twenty-three".