121341531430 has 16 divisors (see below), whose sum is σ = 249616864800. Its totient is φ = 41602810752.

The previous prime is 121341531359. The next prime is 121341531439. The reversal of 121341531430 is 34135143121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121341531439) 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, 866725155 + ... + 866725294.

It is an arithmetic number, because the mean of its divisors is an integer number (15601054050).

Almost surely, 2^121341531430 is an apocalyptic number.

121341531430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121341531430 is an abundant number, since it is smaller than the sum of its proper divisors (128275333370).

121341531430 is a wasteful number, since it uses less digits than its factorization.

121341531430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733450463.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 121341531430 its reverse (34135143121), we get a palindrome (155476674551).

The spelling of 121341531430 in words is "one hundred twenty-one billion, three hundred forty-one million, five hundred thirty-one thousand, four hundred thirty".