121535355004 has 24 divisors (see below), whose sum is σ = 243082385280. Its totient is φ = 52084078896.

The previous prime is 121535354977. The next prime is 121535355017. The reversal of 121535355004 is 400553535121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564339 + ... + 749365.

It is an arithmetic number, because the mean of its divisors is an integer number (10128432720).

Almost surely, 2^121535355004 is an apocalyptic number.

121535355004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121535355004 is an abundant number, since it is smaller than the sum of its proper divisors (121547030276).

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

121535355004 is a wasteful number, since it uses less digits than its factorization.

121535355004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208497 (or 208495 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 121535355004 in words is "one hundred twenty-one billion, five hundred thirty-five million, three hundred fifty-five thousand, four".