30620242831 has 16 divisors (see below), whose sum is σ = 31773772800. Its totient is φ = 29488147200.

The previous prime is 30620242823. The next prime is 30620242837. The reversal of 30620242831 is 13824202603.

It is a cyclic number.

It is not a de Polignac number, because 30620242831 - 2³ = 30620242823 is a prime.

It is a super-2 number, since 2×30620242831² (a number of 22 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 = 30620242793 and 30620242802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30620242837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1189426 + ... + 1214896.

It is an arithmetic number, because the mean of its divisors is an integer number (1985860800).

Almost surely, 2^30620242831 is an apocalyptic number.

30620242831 is a deficient number, since it is larger than the sum of its proper divisors (1153529969).

30620242831 is a wasteful number, since it uses less digits than its factorization.

30620242831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25890.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 30620242831 in words is "thirty billion, six hundred twenty million, two hundred forty-two thousand, eight hundred thirty-one".