30121113322031 has 8 divisors (see below), whose sum is σ = 31430783825280. Its totient is φ = 28811447558872.

The previous prime is 30121113321979. The next prime is 30121113322061. The reversal of 30121113322031 is 13022331112103.

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 30121113322031 - 2⁴² = 25723066810927 is a prime.

It is a super-2 number, since 2×30121113322031² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30121113321988 and 30121113322006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121113322061) 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, 19433396 + ... + 20926038.

It is an arithmetic number, because the mean of its divisors is an integer number (3928847978160).

Almost surely, 2^{30121113322031} is an apocalyptic number.

30121113322031 is a deficient number, since it is larger than the sum of its proper divisors (1309670503249).

30121113322031 is a wasteful number, since it uses less digits than its factorization.

30121113322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370045.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 30121113322031 its reverse (13022331112103), we get a palindrome (43143444434134).

The spelling of 30121113322031 in words is "thirty trillion, one hundred twenty-one billion, one hundred thirteen million, three hundred twenty-two thousand, thirty-one".