213012302020 has 48 divisors (see below), whose sum is σ = 518232693888. Its totient is φ = 72032336640.

The previous prime is 213012301981. The next prime is 213012302131. The reversal of 213012302020 is 20203210312.

It is a junction number, because it is equal to n+sod(n) for n = 213012301985 and 213012302003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10411126 + ... + 10431565.

It is an arithmetic number, because the mean of its divisors is an integer number (10796514456).

Almost surely, 2^213012302020 is an apocalyptic number.

213012302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213012302020 is an abundant number, since it is smaller than the sum of its proper divisors (305220391868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213012302020 is a wasteful number, since it uses less digits than its factorization.

213012302020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20842780 (or 20842778 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 213012302020 its reverse (20203210312), we get a palindrome (233215512332).

The spelling of 213012302020 in words is "two hundred thirteen billion, twelve million, three hundred two thousand, twenty".