1311630400154 has 4 divisors (see below), whose sum is σ = 1967445600234. Its totient is φ = 655815200076.

The previous prime is 1311630400151. The next prime is 1311630400187. The reversal of 1311630400154 is 4510040361131.

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., 1161818827129 + 149811573025 = 1077877^2 + 387055^2 .

It is not an unprimeable number, because it can be changed into a prime (1311630400151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327907600037 + ... + 327907600040.

Almost surely, 2^{1311630400154} is an apocalyptic number.

1311630400154 is a deficient number, since it is larger than the sum of its proper divisors (655815200080).

1311630400154 is an equidigital number, since it uses as much as digits as its factorization.

1311630400154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655815200079.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 1311630400154 its reverse (4510040361131), we get a palindrome (5821670761285).

The spelling of 1311630400154 in words is "one trillion, three hundred eleven billion, six hundred thirty million, four hundred thousand, one hundred fifty-four".