30121321202031 has 8 divisors (see below), whose sum is σ = 40164749660464. Its totient is φ = 20079386772480.

The previous prime is 30121321202023. The next prime is 30121321202053. The reversal of 30121321202031 is 13020212312103.

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

It is not a de Polignac number, because 30121321202031 - 2³ = 30121321202023 is a prime.

It is a super-2 number, since 2×30121321202031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30121321201989 and 30121321202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121321902031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373460176 + ... + 373540821.

It is an arithmetic number, because the mean of its divisors is an integer number (5020593707558).

Almost surely, 2^{30121321202031} is an apocalyptic number.

30121321202031 is a deficient number, since it is larger than the sum of its proper divisors (10043428458433).

30121321202031 is a wasteful number, since it uses less digits than its factorization.

30121321202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747014441.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 30121321202031 its reverse (13020212312103), we get a palindrome (43141533514134).

The spelling of 30121321202031 in words is "thirty trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred two thousand, thirty-one".