1020044003402 has 8 divisors (see below), whose sum is σ = 1530072773796. Its totient is φ = 510019745472.

The previous prime is 1020044003393. The next prime is 1020044003411. The reversal of 1020044003402 is 2043004400201.

It is an interprime number because it is at equal distance from previous prime (1020044003393) and next prime (1020044003411).

It can be written as a sum of positive squares in 2 ways, for example, as 971365965241 + 48678038161 = 985579^2 + 220631^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491033 + ... + 1510364.

Almost surely, 2^{1020044003402} is an apocalyptic number.

1020044003402 is a deficient number, since it is larger than the sum of its proper divisors (510028770394).

1020044003402 is a wasteful number, since it uses less digits than its factorization.

1020044003402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256232.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1020044003402 its reverse (2043004400201), we get a palindrome (3063048403603).

The spelling of 1020044003402 in words is "one trillion, twenty billion, forty-four million, three thousand, four hundred two".