121542231462 has 8 divisors (see below), whose sum is σ = 243084462936. Its totient is φ = 40514077152.

The previous prime is 121542231451. The next prime is 121542231491. The reversal of 121542231462 is 264132245121.

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

121542231462 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10128519283 + ... + 10128519294.

It is an arithmetic number, because the mean of its divisors is an integer number (30385557867).

Almost surely, 2^121542231462 is an apocalyptic number.

121542231462 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.

121542231462 is a wasteful number, since it uses less digits than its factorization.

121542231462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20257038582.

The product of its digits is 23040, while the sum is 33.

Adding to 121542231462 its reverse (264132245121), we get a palindrome (385674476583).

The spelling of 121542231462 in words is "one hundred twenty-one billion, five hundred forty-two million, two hundred thirty-one thousand, four hundred sixty-two".