1020134402 has 16 divisors (see below), whose sum is σ = 1851672960. Its totient is φ = 411482688.

The previous prime is 1020134399. The next prime is 1020134411. The reversal of 1020134402 is 2044310201.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142902 + ... + 2143377.

It is an arithmetic number, because the mean of its divisors is an integer number (115729560).

Almost surely, 2^1020134402 is an apocalyptic number.

1020134402 is a deficient number, since it is larger than the sum of its proper divisors (831538558).

1020134402 is a wasteful number, since it uses less digits than its factorization.

1020134402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286305.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1020134402 is about 31939.5429209624. The cubic root of 1020134402 is about 1006.6669207247. Note that the first 3 decimals are identical.

Adding to 1020134402 its reverse (2044310201), we get a palindrome (3064444603).

The spelling of 1020134402 in words is "one billion, twenty million, one hundred thirty-four thousand, four hundred two".