1351423551202 has 4 divisors (see below), whose sum is σ = 2027135326806. Its totient is φ = 675711775600.

The previous prime is 1351423551113. The next prime is 1351423551227. The reversal of 1351423551202 is 2021553241531.

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

It can be written as a sum of positive squares in only one way, i.e., 1294727655321 + 56695895881 = 1137861^2 + 238109^2 .

It is a super-2 number, since 2×1351423551202² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 337855887799 + ... + 337855887802.

Almost surely, 2^{1351423551202} is an apocalyptic number.

1351423551202 is a deficient number, since it is larger than the sum of its proper divisors (675711775604).

1351423551202 is an equidigital number, since it uses as much as digits as its factorization.

1351423551202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675711775603.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 1351423551202 its reverse (2021553241531), we get a palindrome (3372976792733).

The spelling of 1351423551202 in words is "one trillion, three hundred fifty-one billion, four hundred twenty-three million, five hundred fifty-one thousand, two hundred two".