1020404213434 has 16 divisors (see below), whose sum is σ = 1533852769896. Its totient is φ = 509120352000.

The previous prime is 1020404213431. The next prime is 1020404213447. The reversal of 1020404213434 is 4343124040201.

It can be written as a sum of positive squares in 4 ways, for example, as 302173388209 + 718230825225 = 549703^2 + 847485^2 .

It is not an unprimeable number, because it can be changed into a prime (1020404213431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5219254 + ... + 5411230.

Almost surely, 2^{1020404213434} is an apocalyptic number.

1020404213434 is a deficient number, since it is larger than the sum of its proper divisors (513448556462).

1020404213434 is a wasteful number, since it uses less digits than its factorization.

1020404213434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197601.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1020404213434 its reverse (4343124040201), we get a palindrome (5363528253635).

The spelling of 1020404213434 in words is "one trillion, twenty billion, four hundred four million, two hundred thirteen thousand, four hundred thirty-four".