211253111342 has 16 divisors (see below), whose sum is σ = 390005744352. Its totient is φ = 83572659360.

The previous prime is 211253111341. The next prime is 211253111357. The reversal of 211253111342 is 243111352112.

It is a super-3 number, since 3×211253111342³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211253111341) 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, 580365509 + ... + 580365872.

It is an arithmetic number, because the mean of its divisors is an integer number (24375359022).

Almost surely, 2^211253111342 is an apocalyptic number.

211253111342 is a deficient number, since it is larger than the sum of its proper divisors (178752633010).

211253111342 is a wasteful number, since it uses less digits than its factorization.

211253111342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160731403.

The product of its digits is 1440, while the sum is 26.

Adding to 211253111342 its reverse (243111352112), we get a palindrome (454364463454).

The spelling of 211253111342 in words is "two hundred eleven billion, two hundred fifty-three million, one hundred eleven thousand, three hundred forty-two".