120121131400 has 48 divisors (see below), whose sum is σ = 280896056100. Its totient is φ = 47770702080.

The previous prime is 120121131397. The next prime is 120121131407. The reversal of 120121131400 is 4131121021.

It can be written as a sum of positive squares in 6 ways, for example, as 87352166916 + 32768964484 = 295554^2 + 181022^2 .

It is not an unprimeable number, because it can be changed into a prime (120121131407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1701255 + ... + 1770454.

Almost surely, 2^120121131400 is an apocalyptic number.

120121131400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121131400 is an abundant number, since it is smaller than the sum of its proper divisors (160774924700).

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

120121131400 is a wasteful number, since it uses less digits than its factorization.

120121131400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471898 (or 3471889 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 120121131400 its reverse (4131121021), we get a palindrome (124252252421).

The spelling of 120121131400 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred thirty-one thousand, four hundred".