1311422354650 has 24 divisors (see below), whose sum is σ = 2582730615420. Its totient is φ = 493711944960.

The previous prime is 1311422354647. The next prime is 1311422354707. The reversal of 1311422354650 is 564532241131.

It can be written as a sum of positive squares in 6 ways, for example, as 254418351201 + 1057004003449 = 504399^2 + 1028107^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771424065 + ... + 771425764.

Almost surely, 2^{1311422354650} is an apocalyptic number.

1311422354650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311422354650 is a deficient number, since it is larger than the sum of its proper divisors (1271308260770).

1311422354650 is a wasteful number, since it uses less digits than its factorization.

1311422354650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542849858 (or 1542849853 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 1311422354650 its reverse (564532241131), we get a palindrome (1875954595781).

The spelling of 1311422354650 in words is "one trillion, three hundred eleven billion, four hundred twenty-two million, three hundred fifty-four thousand, six hundred fifty".