1301243123140 has 48 divisors (see below), whose sum is σ = 2823307014528. Its totient is φ = 503456776704.

The previous prime is 1301243123137. The next prime is 1301243123143. The reversal of 1301243123140 is 413213421031.

It is an interprime number because it is at equal distance from previous prime (1301243123137) and next prime (1301243123143).

It is not an unprimeable number, because it can be changed into a prime (1301243123143) by changing a digit.

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, 7256437 + ... + 7433596.

It is an arithmetic number, because the mean of its divisors is an integer number (58818896136).

Almost surely, 2^{1301243123140} is an apocalyptic number.

1301243123140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301243123140 is an abundant number, since it is smaller than the sum of its proper divisors (1522063891388).

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

1301243123140 is a wasteful number, since it uses less digits than its factorization.

1301243123140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14690188 (or 14690186 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1301243123140 its reverse (413213421031), we get a palindrome (1714456544171).

The spelling of 1301243123140 in words is "one trillion, three hundred one billion, two hundred forty-three million, one hundred twenty-three thousand, one hundred forty".