121353213010 has 16 divisors (see below), whose sum is σ = 218450683800. Its totient is φ = 48537974016.

The previous prime is 121353212987. The next prime is 121353213011. The reversal of 121353213010 is 10312353121.

It can be written as a sum of positive squares in 4 ways, for example, as 89207950329 + 32145262681 = 298677^2 + 179291^2 .

It is not an unprimeable number, because it can be changed into a prime (121353213011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257145 + ... + 555724.

Almost surely, 2^121353213010 is an apocalyptic number.

121353213010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121353213010 is a deficient number, since it is larger than the sum of its proper divisors (97097470790).

121353213010 is a wasteful number, since it uses less digits than its factorization.

121353213010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827805.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 121353213010 its reverse (10312353121), we get a palindrome (131665566131).

The spelling of 121353213010 in words is "one hundred twenty-one billion, three hundred fifty-three million, two hundred thirteen thousand, ten".