31344551442345 has 32 divisors (see below), whose sum is σ = 50252573048832. Its totient is φ = 16683332628672.

The previous prime is 31344551442329. The next prime is 31344551442437. The reversal of 31344551442345 is 54324415544313.

It is a happy number.

It is not a de Polignac number, because 31344551442345 - 2⁴ = 31344551442329 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31344551442294 and 31344551442303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403641312 + ... + 403718958.

It is an arithmetic number, because the mean of its divisors is an integer number (1570392907776).

Almost surely, 2^{31344551442345} is an apocalyptic number.

It is an amenable number.

31344551442345 is a deficient number, since it is larger than the sum of its proper divisors (18908021606487).

31344551442345 is a wasteful number, since it uses less digits than its factorization.

31344551442345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131661.

The product of its digits is 6912000, while the sum is 48.

Adding to 31344551442345 its reverse (54324415544313), we get a palindrome (85668966986658).

The spelling of 31344551442345 in words is "thirty-one trillion, three hundred forty-four billion, five hundred fifty-one million, four hundred forty-two thousand, three hundred forty-five".