31344403023402 has 32 divisors (see below), whose sum is σ = 71644682166144. Its totient is φ = 8955502171200.

The previous prime is 31344403023371. The next prime is 31344403023421. The reversal of 31344403023402 is 20432030444313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8083752 + ... + 11315292.

It is an arithmetic number, because the mean of its divisors is an integer number (2238896317692).

Almost surely, 2^{31344403023402} is an apocalyptic number.

31344403023402 is an abundant number, since it is smaller than the sum of its proper divisors (40300279142742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31344403023402 is a wasteful number, since it uses less digits than its factorization.

31344403023402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462494.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 31344403023402 its reverse (20432030444313), we get a palindrome (51776433467715).

The spelling of 31344403023402 in words is "thirty-one trillion, three hundred forty-four billion, four hundred three million, twenty-three thousand, four hundred two".