121403001320 has 32 divisors (see below), whose sum is σ = 273233567520. Its totient is φ = 48547544640.

The previous prime is 121403001287. The next prime is 121403001337. The reversal of 121403001320 is 23100304121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282122 + ... + 567801.

It is an arithmetic number, because the mean of its divisors is an integer number (8538548985).

Almost surely, 2^121403001320 is an apocalyptic number.

121403001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121403001320 is an abundant number, since it is smaller than the sum of its proper divisors (151830566200).

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

121403001320 is a wasteful number, since it uses less digits than its factorization.

121403001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853505 (or 853501 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121403001320 its reverse (23100304121), we get a palindrome (144503305441).

The spelling of 121403001320 in words is "one hundred twenty-one billion, four hundred three million, one thousand, three hundred twenty".