121341450143 has 4 divisors (see below), whose sum is σ = 121383165480. Its totient is φ = 121299734808.

The previous prime is 121341450121. The next prime is 121341450151. The reversal of 121341450143 is 341054143121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121341450143 - 2⁶ = 121341450079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121341450163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20853305 + ... + 20859122.

It is an arithmetic number, because the mean of its divisors is an integer number (30345791370).

Almost surely, 2^121341450143 is an apocalyptic number.

121341450143 is a deficient number, since it is larger than the sum of its proper divisors (41715337).

121341450143 is an equidigital number, since it uses as much as digits as its factorization.

121341450143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41715336.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 121341450143 its reverse (341054143121), we get a palindrome (462395593264).

The spelling of 121341450143 in words is "one hundred twenty-one billion, three hundred forty-one million, four hundred fifty thousand, one hundred forty-three".