211453360842 has 16 divisors (see below), whose sum is σ = 423174572640. Its totient is φ = 70439811792.

The previous prime is 211453360841. The next prime is 211453360843. The reversal of 211453360842 is 248063354112.

It is an interprime number because it is at equal distance from previous prime (211453360841) and next prime (211453360843).

It is a super-2 number, since 2×211453360842² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211453360842.

It is not an unprimeable number, because it can be changed into a prime (211453360841) 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, 11150193 + ... + 11169140.

It is an arithmetic number, because the mean of its divisors is an integer number (26448410790).

Almost surely, 2^211453360842 is an apocalyptic number.

211453360842 is an abundant number, since it is smaller than the sum of its proper divisors (211721211798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211453360842 is a wasteful number, since it uses less digits than its factorization.

211453360842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22320917.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 211453360842 in words is "two hundred eleven billion, four hundred fifty-three million, three hundred sixty thousand, eight hundred forty-two".