1237331421316 has 9 divisors (see below), whose sum is σ = 2165333880549. Its totient is φ = 618664598304.

The previous prime is 1237331421311. The next prime is 1237331421397. The reversal of 1237331421316 is 6131241337321.

The square root of 1237331421316 is 1112354.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 551588436100 + 685742985216 = 742690^2 + 828096^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1237331421311) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1946620 + ... + 2502796.

Almost surely, 2^{1237331421316} is an apocalyptic number.

1237331421316 is the 1112354-th square number.

It is an amenable number.

1237331421316 is a deficient number, since it is larger than the sum of its proper divisors (928002459233).

1237331421316 is an frugal number, since it uses more digits than its factorization.

1237331421316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112358 (or 556179 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

Adding to 1237331421316 its reverse (6131241337321), we get a palindrome (7368572758637).

It can be divided in two parts, 123733 and 1421316, that added together give a square (1545049 = 1243²).

The spelling of 1237331421316 in words is "one trillion, two hundred thirty-seven billion, three hundred thirty-one million, four hundred twenty-one thousand, three hundred sixteen".