30531021023135 has 12 divisors (see below), whose sum is σ = 37654182547128. Its totient is φ = 23764686628896.

The previous prime is 30531021023123. The next prime is 30531021023171. The reversal of 30531021023135 is 53132012013503.

It is a happy number.

It is not a de Polignac number, because 30531021023135 - 2¹⁶ = 30531020957599 is a prime.

It is a super-2 number, since 2×30531021023135² (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 = 30531021023098 and 30531021023107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2230162697 + ... + 2230176386.

It is an arithmetic number, because the mean of its divisors is an integer number (3137848545594).

Almost surely, 2^{30531021023135} is an apocalyptic number.

30531021023135 is a deficient number, since it is larger than the sum of its proper divisors (7123161523993).

30531021023135 is an equidigital number, since it uses as much as digits as its factorization.

30531021023135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460339162 (or 4460339125 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 30531021023135 its reverse (53132012013503), we get a palindrome (83663033036638).

The spelling of 30531021023135 in words is "thirty trillion, five hundred thirty-one billion, twenty-one million, twenty-three thousand, one hundred thirty-five".