1316222431 has 8 divisors (see below), whose sum is σ = 1332142704. Its totient is φ = 1300393920.

The previous prime is 1316222393. The next prime is 1316222443. The reversal of 1316222431 is 1342226131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1316222431 - 2⁹ = 1316221919 is a prime.

It is a super-2 number, since 2×1316222431² = 3464882975735099522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1316222396 and 1316222405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316222471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6141 + ... + 51673.

It is an arithmetic number, because the mean of its divisors is an integer number (166517838).

Almost surely, 2^1316222431 is an apocalyptic number.

1316222431 is a deficient number, since it is larger than the sum of its proper divisors (15920273).

1316222431 is a wasteful number, since it uses less digits than its factorization.

1316222431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45881.

The product of its digits is 1728, while the sum is 25.

The square root of 1316222431 is about 36279.7799193986. The cubic root of 1316222431 is about 1095.9138846572.

Adding to 1316222431 its reverse (1342226131), we get a palindrome (2658448562).

The spelling of 1316222431 in words is "one billion, three hundred sixteen million, two hundred twenty-two thousand, four hundred thirty-one".