121312103201010 has 48 divisors (see below), whose sum is σ = 320757425426880. Its totient is φ = 31801590894240.

The previous prime is 121312103200943. The next prime is 121312103201017. The reversal of 121312103201010 is 10102301213121.

121312103201010 is a `hidden beast` number, since 1 + 2 + 1 + 31 + 210 + 320 + 101 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (121312103201017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11422979926 + ... + 11422990545.

It is an arithmetic number, because the mean of its divisors is an integer number (6682446363060).

Almost surely, 2^{121312103201010} is an apocalyptic number.

121312103201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121312103201010 is an abundant number, since it is smaller than the sum of its proper divisors (199445322225870).

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

121312103201010 is a wasteful number, since it uses less digits than its factorization.

121312103201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22845970543 (or 22845970540 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121312103201010 its reverse (10102301213121), we get a palindrome (131414404414131).

The spelling of 121312103201010 in words is "one hundred twenty-one trillion, three hundred twelve billion, one hundred three million, two hundred one thousand, ten".