30520123124645 has 96 divisors (see below), whose sum is σ = 48297907584000. Its totient is φ = 18288227865600.

The previous prime is 30520123124611. The next prime is 30520123124651. The reversal of 30520123124645 is 54642132102503.

It is not a de Polignac number, because 30520123124645 - 2²⁴ = 30520106347429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30520123124599 and 30520123124608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11222321 + ... + 13674089.

It is an arithmetic number, because the mean of its divisors is an integer number (503103204000).

Almost surely, 2^{30520123124645} is an apocalyptic number.

30520123124645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30520123124645 is a deficient number, since it is larger than the sum of its proper divisors (17777784459355).

30520123124645 is a wasteful number, since it uses less digits than its factorization.

30520123124645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451979 (or 2451972 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 30520123124645 in words is "thirty trillion, five hundred twenty billion, one hundred twenty-three million, one hundred twenty-four thousand, six hundred forty-five".