1020100402 has 16 divisors (see below), whose sum is σ = 1620801792. Its totient is φ = 479856960.

The previous prime is 1020100379. The next prime is 1020100429. The reversal of 1020100402 is 2040010201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119323 + ... + 127585.

It is an arithmetic number, because the mean of its divisors is an integer number (101300112).

Almost surely, 2^1020100402 is an apocalyptic number.

1020100402 is a deficient number, since it is larger than the sum of its proper divisors (600701390).

1020100402 is a wasteful number, since it uses less digits than its factorization.

1020100402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11913.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1020100402 is about 31939.0106609457. The cubic root of 1020100402 is about 1006.6557368860.

Adding to 1020100402 its reverse (2040010201), we get a palindrome (3060110603).

The spelling of 1020100402 in words is "one billion, twenty million, one hundred thousand, four hundred two".