121310203210 has 32 divisors (see below), whose sum is σ = 250174801152. Its totient is φ = 41488339200.

The previous prime is 121310203207. The next prime is 121310203211. The reversal of 121310203210 is 12302013121.

It is not an unprimeable number, because it can be changed into a prime (121310203211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2132782 + ... + 2188921.

It is an arithmetic number, because the mean of its divisors is an integer number (7817962536).

Almost surely, 2^121310203210 is an apocalyptic number.

121310203210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121310203210 is an abundant number, since it is smaller than the sum of its proper divisors (128864597942).

121310203210 is a wasteful number, since it uses less digits than its factorization.

121310203210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322118.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121310203210 its reverse (12302013121), we get a palindrome (133612216331).

The spelling of 121310203210 in words is "one hundred twenty-one billion, three hundred ten million, two hundred three thousand, two hundred ten".