30021323131444 has 12 divisors (see below), whose sum is σ = 52705166330404. Its totient is φ = 14962704179904.

The previous prime is 30021323131403. The next prime is 30021323131477. The reversal of 30021323131444 is 44413132312003.

It can be written as a sum of positive squares in 2 ways, for example, as 5767865083044 + 24253458048400 = 2401638^2 + 4924780^2 .

It is a super-3 number, since 3×30021323131444³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11989345047 + ... + 11989347550.

Almost surely, 2^{30021323131444} is an apocalyptic number.

It is an amenable number.

30021323131444 is a deficient number, since it is larger than the sum of its proper divisors (22683843198960).

30021323131444 is a wasteful number, since it uses less digits than its factorization.

30021323131444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23978692914 (or 23978692912 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 30021323131444 its reverse (44413132312003), we get a palindrome (74434455443447).

The spelling of 30021323131444 in words is "thirty trillion, twenty-one billion, three hundred twenty-three million, one hundred thirty-one thousand, four hundred forty-four".