121203323010 has 384 divisors, whose sum is σ = 407077332480. Its totient is φ = 24289689600.

The previous prime is 121203322951. The next prime is 121203323089. The reversal of 121203323010 is 10323302121.

121203323010 is a `hidden beast` number, since 12 + 1 + 20 + 332 + 301 + 0 = 666.

121203323010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 25285174 + ... + 25289966.

It is an arithmetic number, because the mean of its divisors is an integer number (1060097220).

Almost surely, 2^121203323010 is an apocalyptic number.

121203323010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121203323010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203538666240).

121203323010 is an abundant number, since it is smaller than the sum of its proper divisors (285874009470).

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

121203323010 is a wasteful number, since it uses less digits than its factorization.

121203323010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954 (or 4951 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121203323010 its reverse (10323302121), we get a palindrome (131526625131).

The spelling of 121203323010 in words is "one hundred twenty-one billion, two hundred three million, three hundred twenty-three thousand, ten".