121240333020430 has 256 divisors, whose sum is σ = 258915867033600. Its totient is φ = 40475024939520.

The previous prime is 121240333020307. The next prime is 121240333020479. The reversal of 121240333020430 is 34020333042121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1827003591 + ... + 1827069949.

It is an arithmetic number, because the mean of its divisors is an integer number (1011390105600).

Almost surely, 2^{121240333020430} is an apocalyptic number.

121240333020430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121240333020430 is an abundant number, since it is smaller than the sum of its proper divisors (137675534013170).

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

121240333020430 is a wasteful number, since it uses less digits than its factorization.

121240333020430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66759.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 121240333020430 its reverse (34020333042121), we get a palindrome (155260666062551).

The spelling of 121240333020430 in words is "one hundred twenty-one trillion, two hundred forty billion, three hundred thirty-three million, twenty thousand, four hundred thirty".