213125512540001 has 4 divisors (see below), whose sum is σ = 213127094910000. Its totient is φ = 213123930170004.

The previous prime is 213125512539959. The next prime is 213125512540037. The reversal of 213125512540001 is 100045215521312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213125512540001 - 2³⁴ = 213108332670817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213125512540001.

It is not an unprimeable number, because it can be changed into a prime (213125512548001) 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, 790982951 + ... + 791252348.

It is an arithmetic number, because the mean of its divisors is an integer number (53281773727500).

Almost surely, 2^{213125512540001} is an apocalyptic number.

It is an amenable number.

213125512540001 is a deficient number, since it is larger than the sum of its proper divisors (1582369999).

213125512540001 is a wasteful number, since it uses less digits than its factorization.

213125512540001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582369998.

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 213125512540001 in words is "two hundred thirteen trillion, one hundred twenty-five billion, five hundred twelve million, five hundred forty thousand, one".