1371356421245 has 8 divisors (see below), whose sum is σ = 1657639587384. Its totient is φ = 1089077215744.

The previous prime is 1371356421173. The next prime is 1371356421343. The reversal of 1371356421245 is 5421246531731.

It can be written as a sum of positive squares in 4 ways, for example, as 343182729124 + 1028173692121 = 585818^2 + 1013989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1371356421245 - 2¹⁴ = 1371356404861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1371356421196 and 1371356421205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000989404 + ... + 1000990773.

It is an arithmetic number, because the mean of its divisors is an integer number (207204948423).

Almost surely, 2^{1371356421245} is an apocalyptic number.

It is an amenable number.

1371356421245 is a deficient number, since it is larger than the sum of its proper divisors (286283166139).

1371356421245 is a wasteful number, since it uses less digits than its factorization.

1371356421245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001980319.

The product of its digits is 604800, while the sum is 44.

The spelling of 1371356421245 in words is "one trillion, three hundred seventy-one billion, three hundred fifty-six million, four hundred twenty-one thousand, two hundred forty-five".