1331256367342 has 8 divisors (see below), whose sum is σ = 2178419510232. Its totient is φ = 605116530600.

The previous prime is 1331256367319. The next prime is 1331256367349. The reversal of 1331256367342 is 2437636521331.

It is a happy number.

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

It is a super-3 number, since 3×1331256367342³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331256367292 and 1331256367301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331256367349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30255826509 + ... + 30255826552.

It is an arithmetic number, because the mean of its divisors is an integer number (272302438779).

Almost surely, 2^{1331256367342} is an apocalyptic number.

1331256367342 is a deficient number, since it is larger than the sum of its proper divisors (847163142890).

1331256367342 is a wasteful number, since it uses less digits than its factorization.

1331256367342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60511653074.

The product of its digits is 1632960, while the sum is 46.

The spelling of 1331256367342 in words is "one trillion, three hundred thirty-one billion, two hundred fifty-six million, three hundred sixty-seven thousand, three hundred forty-two".