10121023420400 has 60 divisors (see below), whose sum is σ = 25154233236600. Its totient is φ = 3908809040640.

The previous prime is 10121023420379. The next prime is 10121023420423. The reversal of 10121023420400 is 402432012101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436239410 + ... + 436262609.

It is an arithmetic number, because the mean of its divisors is an integer number (419237220610).

Almost surely, 2^{10121023420400} is an apocalyptic number.

10121023420400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121023420400 is an abundant number, since it is smaller than the sum of its proper divisors (15033209816200).

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

10121023420400 is a wasteful number, since it uses less digits than its factorization.

10121023420400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872502066 (or 872502055 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10121023420400 its reverse (402432012101), we get a palindrome (10523455432501).

The spelling of 10121023420400 in words is "ten trillion, one hundred twenty-one billion, twenty-three million, four hundred twenty thousand, four hundred".