121245254532 has 36 divisors (see below), whose sum is σ = 324509359356. Its totient is φ = 38037726720.

The previous prime is 121245254531. The next prime is 121245254567. The reversal of 121245254532 is 235452542121.

121245254532 is a `hidden beast` number, since 1 + 2 + 1 + 24 + 52 + 54 + 532 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 112316138496 + 8929116036 = 335136^2 + 94494^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (121245254531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99055969 + ... + 99057192.

It is an arithmetic number, because the mean of its divisors is an integer number (9014148871).

Almost surely, 2^121245254532 is an apocalyptic number.

121245254532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121245254532 is an abundant number, since it is smaller than the sum of its proper divisors (203264104824).

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

121245254532 is a wasteful number, since it uses less digits than its factorization.

121245254532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198113188 (or 198113183 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 121245254532 its reverse (235452542121), we get a palindrome (356697796653).

The spelling of 121245254532 in words is "one hundred twenty-one billion, two hundred forty-five million, two hundred fifty-four thousand, five hundred thirty-two".