1012320434402 has 4 divisors (see below), whose sum is σ = 1518480651606. Its totient is φ = 506160217200.

The previous prime is 1012320434393. The next prime is 1012320434407. The reversal of 1012320434402 is 2044340232101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1011474729841 + 845704561 = 1005721^2 + 29081^2 .

It is not an unprimeable number, because it can be changed into a prime (1012320434407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253080108599 + ... + 253080108602.

Almost surely, 2^{1012320434402} is an apocalyptic number.

1012320434402 is a deficient number, since it is larger than the sum of its proper divisors (506160217204).

1012320434402 is an equidigital number, since it uses as much as digits as its factorization.

1012320434402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506160217203.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1012320434402 its reverse (2044340232101), we get a palindrome (3056660666503).

The spelling of 1012320434402 in words is "one trillion, twelve billion, three hundred twenty million, four hundred thirty-four thousand, four hundred two".