211320451542 has 8 divisors (see below), whose sum is σ = 422640903096. Its totient is φ = 70440150512.

The previous prime is 211320451471. The next prime is 211320451553. The reversal of 211320451542 is 245154023112.

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

211320451542 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17610037623 + ... + 17610037634.

It is an arithmetic number, because the mean of its divisors is an integer number (52830112887).

Almost surely, 2^211320451542 is an apocalyptic number.

211320451542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211320451542 is a wasteful number, since it uses less digits than its factorization.

211320451542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35220075262.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 211320451542 its reverse (245154023112), we get a palindrome (456474474654).

The spelling of 211320451542 in words is "two hundred eleven billion, three hundred twenty million, four hundred fifty-one thousand, five hundred forty-two".