121535053000 has 32 divisors (see below), whose sum is σ = 284392026360. Its totient is φ = 48614020800.

The previous prime is 121535052959. The next prime is 121535053009. The reversal of 121535053000 is 350535121.

It can be written as a sum of positive squares in 4 ways, for example, as 51419190564 + 70115862436 = 226758^2 + 264794^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (121535053009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60766527 + ... + 60768526.

Almost surely, 2^121535053000 is an apocalyptic number.

121535053000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121535053000 is an abundant number, since it is smaller than the sum of its proper divisors (162856973360).

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

121535053000 is a wasteful number, since it uses less digits than its factorization.

121535053000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121535074 (or 121535060 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 121535053000 its reverse (350535121), we get a palindrome (121885588121).

The spelling of 121535053000 in words is "one hundred twenty-one billion, five hundred thirty-five million, fifty-three thousand".