1021344432402 has 32 divisors (see below), whose sum is σ = 2335083679872. Its totient is φ = 291739929984.

The previous prime is 1021344432391. The next prime is 1021344432431. The reversal of 1021344432402 is 2042344431201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021344432402.

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, 2861323 + ... + 3198414.

It is an arithmetic number, because the mean of its divisors is an integer number (72971364996).

Almost surely, 2^{1021344432402} is an apocalyptic number.

1021344432402 is an abundant number, since it is smaller than the sum of its proper divisors (1313739247470).

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

1021344432402 is a wasteful number, since it uses less digits than its factorization.

1021344432402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6063762.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1021344432402 its reverse (2042344431201), we get a palindrome (3063688863603).

The spelling of 1021344432402 in words is "one trillion, twenty-one billion, three hundred forty-four million, four hundred thirty-two thousand, four hundred two".