211142420013 has 8 divisors (see below), whose sum is σ = 321740830528. Its totient is φ = 120652811424.

The previous prime is 211142420011. The next prime is 211142420023. The reversal of 211142420013 is 310024241112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211142420013 - 2¹ = 211142420011 is a prime.

It is a super-2 number, since 2×211142420013² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10054400953 = 211142420013 / (2 + 1 + 1 + 1 + 4 + 2 + 4 + 2 + 0 + 0 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211142420011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5027200456 + ... + 5027200497.

It is an arithmetic number, because the mean of its divisors is an integer number (40217603816).

Almost surely, 2^211142420013 is an apocalyptic number.

It is an amenable number.

211142420013 is a deficient number, since it is larger than the sum of its proper divisors (110598410515).

211142420013 is a wasteful number, since it uses less digits than its factorization.

211142420013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10054400963.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 211142420013 its reverse (310024241112), we get a palindrome (521166661125).

The spelling of 211142420013 in words is "two hundred eleven billion, one hundred forty-two million, four hundred twenty thousand, thirteen".