30003131103021 has 12 divisors (see below), whose sum is σ = 43361068625472. Its totient is φ = 19991373899976.

The previous prime is 30003131103007. The next prime is 30003131103131. The reversal of 30003131103021 is 12030113130003.

It is a happy number.

30003131103021 is a `hidden beast` number, since 300 + 0 + 3 + 1 + 311 + 0 + 30 + 21 = 666.

It is not a de Polignac number, because 30003131103021 - 2¹³ = 30003131094829 is a prime.

It is a super-2 number, since 2×30003131103021² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30003131102985 and 30003131103003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30003131103221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892774101 + ... + 892807706.

It is an arithmetic number, because the mean of its divisors is an integer number (3613422385456).

Almost surely, 2^{30003131103021} is an apocalyptic number.

It is an amenable number.

30003131103021 is a deficient number, since it is larger than the sum of its proper divisors (13357937522451).

30003131103021 is a wasteful number, since it uses less digits than its factorization.

30003131103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785583680 (or 1785583677 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 30003131103021 its reverse (12030113130003), we get a palindrome (42033244233024).

The spelling of 30003131103021 in words is "thirty trillion, three billion, one hundred thirty-one million, one hundred three thousand, twenty-one".