212356620503 has 4 divisors (see below), whose sum is σ = 223533284760. Its totient is φ = 201179956248.

The previous prime is 212356620493. The next prime is 212356620547. The reversal of 212356620503 is 305026653212.

212356620503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212356620503 - 2²⁶ = 212289511639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212356622503) 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 3 ways as a sum of consecutive naturals, for example, 5588332100 + ... + 5588332137.

It is an arithmetic number, because the mean of its divisors is an integer number (55883321190).

Almost surely, 2^212356620503 is an apocalyptic number.

212356620503 is a deficient number, since it is larger than the sum of its proper divisors (11176664257).

212356620503 is a wasteful number, since it uses less digits than its factorization.

212356620503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11176664256.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 212356620503 in words is "two hundred twelve billion, three hundred fifty-six million, six hundred twenty thousand, five hundred three".