1351336612723 has 16 divisors (see below), whose sum is σ = 1438457725440. Its totient is φ = 1265849100000.

The previous prime is 1351336612621. The next prime is 1351336612729. The reversal of 1351336612723 is 3272166331531.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1351336612723 - 2³³ = 1342746678131 is a prime.

It is a super-2 number, since 2×1351336612723² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1351336612723.

It is not an unprimeable number, because it can be changed into a prime (1351336612729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972336 + ... + 1910002.

It is an arithmetic number, because the mean of its divisors is an integer number (89903607840).

Almost surely, 2^{1351336612723} is an apocalyptic number.

1351336612723 is a deficient number, since it is larger than the sum of its proper divisors (87121112717).

1351336612723 is a wasteful number, since it uses less digits than its factorization.

1351336612723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938538.

The product of its digits is 408240, while the sum is 43.

The spelling of 1351336612723 in words is "one trillion, three hundred fifty-one billion, three hundred thirty-six million, six hundred twelve thousand, seven hundred twenty-three".