10121243400 has 144 divisors (see below), whose sum is σ = 34250776560. Its totient is φ = 2678332800.

The previous prime is 10121243389. The next prime is 10121243411. The reversal of 10121243400 is 434212101.

10121243400 is a `hidden beast` number, since 1 + 0 + 1 + 21 + 243 + 400 = 666.

It is an interprime number because it is at equal distance from previous prime (10121243389) and next prime (10121243411).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 214339 + ... + 257261.

It is an arithmetic number, because the mean of its divisors is an integer number (237852615).

Almost surely, 2^10121243400 is an apocalyptic number.

10121243400 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 10121243400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17125388280).

10121243400 is an abundant number, since it is smaller than the sum of its proper divisors (24129533160).

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

10121243400 is a wasteful number, since it uses less digits than its factorization.

10121243400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43076 (or 43064 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10121243400 its reverse (434212101), we get a palindrome (10555455501).

The spelling of 10121243400 in words is "ten billion, one hundred twenty-one million, two hundred forty-three thousand, four hundred".