1020200100402 has 16 divisors (see below), whose sum is σ = 2331885943872. Its totient is φ = 291485742960.

The previous prime is 1020200100371. The next prime is 1020200100487. The reversal of 1020200100402 is 2040010020201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12145239249 + ... + 12145239332.

It is an arithmetic number, because the mean of its divisors is an integer number (145742871492).

Almost surely, 2^{1020200100402} is an apocalyptic number.

1020200100402 is an abundant number, since it is smaller than the sum of its proper divisors (1311685843470).

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

1020200100402 is a wasteful number, since it uses less digits than its factorization.

1020200100402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24290478593.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1020200100402 its reverse (2040010020201), we get a palindrome (3060210120603).

The spelling of 1020200100402 in words is "one trillion, twenty billion, two hundred million, one hundred thousand, four hundred two".