121145254300 has 144 divisors (see below), whose sum is σ = 308067782400. Its totient is φ = 40483008000.

The previous prime is 121145254267. The next prime is 121145254319. The reversal of 121145254300 is 3452541121.

It is a super-3 number, since 3×121145254300³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57714651 + ... + 57716749.

It is an arithmetic number, because the mean of its divisors is an integer number (2139359600).

Almost surely, 2^121145254300 is an apocalyptic number.

121145254300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121145254300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154033891200).

121145254300 is an abundant number, since it is smaller than the sum of its proper divisors (186922528100).

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

121145254300 is a wasteful number, since it uses less digits than its factorization.

121145254300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172 (or 4165 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 121145254300 its reverse (3452541121), we get a palindrome (124597795421).

The spelling of 121145254300 in words is "one hundred twenty-one billion, one hundred forty-five million, two hundred fifty-four thousand, three hundred".