121252342452 has 48 divisors (see below), whose sum is σ = 284588458560. Its totient is φ = 40179538432.

The previous prime is 121252342433. The next prime is 121252342457. The reversal of 121252342452 is 254243252121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121252342457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9696268 + ... + 9708764.

It is an arithmetic number, because the mean of its divisors is an integer number (5928926220).

Almost surely, 2^121252342452 is an apocalyptic number.

121252342452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121252342452 is an abundant number, since it is smaller than the sum of its proper divisors (163336116108).

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

121252342452 is a wasteful number, since it uses less digits than its factorization.

121252342452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17200 (or 17198 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

Adding to 121252342452 its reverse (254243252121), we get a palindrome (375495594573).

The spelling of 121252342452 in words is "one hundred twenty-one billion, two hundred fifty-two million, three hundred forty-two thousand, four hundred fifty-two".