121352505354 has 96 divisors (see below), whose sum is σ = 287066482560. Its totient is φ = 36916560000.

The previous prime is 121352505331. The next prime is 121352505361. The reversal of 121352505354 is 453505253121.

121352505354 is a `hidden beast` number, since 1 + 21 + 3 + 52 + 50 + 535 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1230579 + ... + 1325529.

It is an arithmetic number, because the mean of its divisors is an integer number (2990275860).

Almost surely, 2^121352505354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121352505354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143533241280).

121352505354 is an abundant number, since it is smaller than the sum of its proper divisors (165713977206).

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

121352505354 is a wasteful number, since it uses less digits than its factorization.

121352505354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95116 (or 95113 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 121352505354 its reverse (453505253121), we get a palindrome (574857758475).

The spelling of 121352505354 in words is "one hundred twenty-one billion, three hundred fifty-two million, five hundred five thousand, three hundred fifty-four".