213424546061 has 4 divisors (see below), whose sum is σ = 215313258972. Its totient is φ = 211535833152.

The previous prime is 213424546051. The next prime is 213424546073. The reversal of 213424546061 is 160645424312.

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 36356955625 + 177067590436 = 190675^2 + 420794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213424546061 is a prime.

It is a super-2 number, since 2×213424546061² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213424546021) 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, 944356286 + ... + 944356511.

It is an arithmetic number, because the mean of its divisors is an integer number (53828314743).

Almost surely, 2^213424546061 is an apocalyptic number.

It is an amenable number.

213424546061 is a deficient number, since it is larger than the sum of its proper divisors (1888712911).

213424546061 is a wasteful number, since it uses less digits than its factorization.

213424546061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888712910.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 213424546061 in words is "two hundred thirteen billion, four hundred twenty-four million, five hundred forty-six thousand, sixty-one".