121315122350 has 24 divisors (see below), whose sum is σ = 225705970560. Its totient is φ = 48513179520.

The previous prime is 121315122281. The next prime is 121315122359. The reversal of 121315122350 is 53221513121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121315122359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130190 + ... + 509489.

It is an arithmetic number, because the mean of its divisors is an integer number (9404415440).

Almost surely, 2^121315122350 is an apocalyptic number.

121315122350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121315122350 is a deficient number, since it is larger than the sum of its proper divisors (104390848210).

121315122350 is a wasteful number, since it uses less digits than its factorization.

121315122350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643484 (or 643479 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 121315122350 its reverse (53221513121), we get a palindrome (174536635471).

The spelling of 121315122350 in words is "one hundred twenty-one billion, three hundred fifteen million, one hundred twenty-two thousand, three hundred fifty".