1351705120994 has 8 divisors (see below), whose sum is σ = 2034477674460. Its totient is φ = 673545896176.

The previous prime is 1351705120981. The next prime is 1351705120999. The reversal of 1351705120994 is 4990215071531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1196518761025 + 155186359969 = 1093855^2 + 393937^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1351705120999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153331429 + ... + 1153332600.

Almost surely, 2^{1351705120994} is an apocalyptic number.

1351705120994 is a deficient number, since it is larger than the sum of its proper divisors (682772553466).

1351705120994 is a wasteful number, since it uses less digits than its factorization.

1351705120994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306664324.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 1351705120994 in words is "one trillion, three hundred fifty-one billion, seven hundred five million, one hundred twenty thousand, nine hundred ninety-four".