121312140441043 has 24 divisors (see below), whose sum is σ = 135864090374400. Its totient is φ = 108067223767536.

The previous prime is 121312140441017. The next prime is 121312140441073. The reversal of 121312140441043 is 340144041213121.

It is not a de Polignac number, because 121312140441043 - 2⁹ = 121312140440531 is a prime.

It is a super-3 number, since 3×121312140441043³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121312140440996 and 121312140441014.

It is not an unprimeable number, because it can be changed into a prime (121312140441073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123329103 + ... + 124308856.

It is an arithmetic number, because the mean of its divisors is an integer number (5661003765600).

Almost surely, 2^{121312140441043} is an apocalyptic number.

121312140441043 is a deficient number, since it is larger than the sum of its proper divisors (14551949933357).

121312140441043 is a wasteful number, since it uses less digits than its factorization.

121312140441043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247638079 (or 247638060 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 121312140441043 its reverse (340144041213121), we get a palindrome (461456181654164).

The spelling of 121312140441043 in words is "one hundred twenty-one trillion, three hundred twelve billion, one hundred forty million, four hundred forty-one thousand, forty-three".