213002123101 has 4 divisors (see below), whose sum is σ = 225531659772. Its totient is φ = 200472586432.

The previous prime is 213002123077. The next prime is 213002123123. The reversal of 213002123101 is 101321200312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 79283917476 + 133718205625 = 281574^2 + 365675^2 .

It is a cyclic number.

It is not a de Polignac number, because 213002123101 - 2¹⁷ = 213001992029 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 (213002126101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6264768310 + ... + 6264768343.

It is an arithmetic number, because the mean of its divisors is an integer number (56382914943).

Almost surely, 2^213002123101 is an apocalyptic number.

It is an amenable number.

213002123101 is a deficient number, since it is larger than the sum of its proper divisors (12529536671).

213002123101 is a wasteful number, since it uses less digits than its factorization.

213002123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12529536670.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 213002123101 its reverse (101321200312), we get a palindrome (314323323413).

The spelling of 213002123101 in words is "two hundred thirteen billion, two million, one hundred twenty-three thousand, one hundred one".