1331310242402 has 64 divisors (see below), whose sum is σ = 2419796332800. Its totient is φ = 537168952320.

The previous prime is 1331310242393. The next prime is 1331310242419. The reversal of 1331310242402 is 2042420131331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33321974 + ... + 33361902.

It is an arithmetic number, because the mean of its divisors is an integer number (37809317700).

Almost surely, 2^{1331310242402} is an apocalyptic number.

1331310242402 is a deficient number, since it is larger than the sum of its proper divisors (1088486090398).

1331310242402 is a wasteful number, since it uses less digits than its factorization.

1331310242402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42011.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1331310242402 its reverse (2042420131331), we get a palindrome (3373730373733).

The spelling of 1331310242402 in words is "one trillion, three hundred thirty-one billion, three hundred ten million, two hundred forty-two thousand, four hundred two".