121245455030 has 128 divisors (see below), whose sum is σ = 271708307712. Its totient is φ = 37999853568.

The previous prime is 121245455027. The next prime is 121245455039. The reversal of 121245455030 is 30554542121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121245455039) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28749482 + ... + 28753698.

It is an arithmetic number, because the mean of its divisors is an integer number (2122721154).

Almost surely, 2^121245455030 is an apocalyptic number.

121245455030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121245455030 is an abundant number, since it is smaller than the sum of its proper divisors (150462852682).

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

121245455030 is a wasteful number, since it uses less digits than its factorization.

121245455030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 121245455030 its reverse (30554542121), we get a palindrome (151799997151).

The spelling of 121245455030 in words is "one hundred twenty-one billion, two hundred forty-five million, four hundred fifty-five thousand, thirty".