121151331542 has 8 divisors (see below), whose sum is σ = 181817369832. Its totient is φ = 60545541600.

The previous prime is 121151331527. The next prime is 121151331619. The reversal of 121151331542 is 245133151121.

It is a happy number.

121151331542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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, 15057059 + ... + 15065102.

It is an arithmetic number, because the mean of its divisors is an integer number (22727171229).

Almost surely, 2^121151331542 is an apocalyptic number.

121151331542 is a deficient number, since it is larger than the sum of its proper divisors (60666038290).

121151331542 is a wasteful number, since it uses less digits than its factorization.

121151331542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30124174.

The product of its digits is 3600, while the sum is 29.

Adding to 121151331542 its reverse (245133151121), we get a palindrome (366284482663).

The spelling of 121151331542 in words is "one hundred twenty-one billion, one hundred fifty-one million, three hundred thirty-one thousand, five hundred forty-two".