1313211040562 has 4 divisors (see below), whose sum is σ = 1969816560846. Its totient is φ = 656605520280.

The previous prime is 1313211040517. The next prime is 1313211040567. The reversal of 1313211040562 is 2650401123131.

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., 1140455262241 + 172755778321 = 1067921^2 + 415639^2 .

It is not an unprimeable number, because it can be changed into a prime (1313211040567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328302760139 + ... + 328302760142.

Almost surely, 2^{1313211040562} is an apocalyptic number.

1313211040562 is a deficient number, since it is larger than the sum of its proper divisors (656605520284).

1313211040562 is an equidigital number, since it uses as much as digits as its factorization.

1313211040562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656605520283.

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

Adding to 1313211040562 its reverse (2650401123131), we get a palindrome (3963612163693).

The spelling of 1313211040562 in words is "one trillion, three hundred thirteen billion, two hundred eleven million, forty thousand, five hundred sixty-two".