1213320214431 has 48 divisors (see below), whose sum is σ = 1895634031200. Its totient is φ = 743402499840.

The previous prime is 1213320214397. The next prime is 1213320214451. The reversal of 1213320214431 is 1344120233121.

1213320214431 is a `hidden beast` number, since 1 + 2 + 13 + 3 + 2 + 0 + 214 + 431 = 666.

It is not a de Polignac number, because 1213320214431 - 2¹⁵ = 1213320181663 is a prime.

It is a super-2 number, since 2×1213320214431² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213320214395 and 1213320214404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213320214451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27621996 + ... + 27665886.

It is an arithmetic number, because the mean of its divisors is an integer number (39492375650).

Almost surely, 2^{1213320214431} is an apocalyptic number.

1213320214431 is a deficient number, since it is larger than the sum of its proper divisors (682313816769).

1213320214431 is a wasteful number, since it uses less digits than its factorization.

1213320214431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44936 (or 44933 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1213320214431 its reverse (1344120233121), we get a palindrome (2557440447552).

The spelling of 1213320214431 in words is "one trillion, two hundred thirteen billion, three hundred twenty million, two hundred fourteen thousand, four hundred thirty-one".