121202040030 has 32 divisors (see below), whose sum is σ = 291053844864. Its totient is φ = 32301771936.

The previous prime is 121202040019. The next prime is 121202040049. The reversal of 121202040030 is 30040202121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 121202039991 and 121202040009.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120704 + ... + 1224083.

It is an arithmetic number, because the mean of its divisors is an integer number (9095432652).

Almost surely, 2^121202040030 is an apocalyptic number.

121202040030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121202040030 is an abundant number, since it is smaller than the sum of its proper divisors (169851804834).

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

121202040030 is a wasteful number, since it uses less digits than its factorization.

121202040030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346520.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 121202040030 its reverse (30040202121), we get a palindrome (151242242151).

The spelling of 121202040030 in words is "one hundred twenty-one billion, two hundred two million, forty thousand, thirty".