1351442263243 has 4 divisors (see below), whose sum is σ = 1351453958560. Its totient is φ = 1351430567928.

The previous prime is 1351442263219. The next prime is 1351442263271. The reversal of 1351442263243 is 3423622441531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351442263243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1351442263196 and 1351442263205.

It is not an unprimeable number, because it can be changed into a prime (1351442263273) 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, 5672580 + ... + 5906017.

It is an arithmetic number, because the mean of its divisors is an integer number (337863489640).

Almost surely, 2^{1351442263243} is an apocalyptic number.

1351442263243 is a deficient number, since it is larger than the sum of its proper divisors (11695317).

1351442263243 is a wasteful number, since it uses less digits than its factorization.

1351442263243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11695316.

The product of its digits is 414720, while the sum is 40.

The spelling of 1351442263243 in words is "one trillion, three hundred fifty-one billion, four hundred forty-two million, two hundred sixty-three thousand, two hundred forty-three".