1021130402 has 16 divisors (see below), whose sum is σ = 1614123072. Its totient is φ = 483529200.

The previous prime is 1021130401. The next prime is 1021130431. The reversal of 1021130402 is 2040311201.

It is not an unprimeable number, because it can be changed into a prime (1021130401) by changing a digit.

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, 105248 + ... + 114539.

It is an arithmetic number, because the mean of its divisors is an integer number (100882692).

Almost surely, 2^1021130402 is an apocalyptic number.

1021130402 is a deficient number, since it is larger than the sum of its proper divisors (592992670).

1021130402 is a wasteful number, since it uses less digits than its factorization.

1021130402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219913.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1021130402 is about 31955.1310746803. The cubic root of 1021130402 is about 1006.9944312048.

Adding to 1021130402 its reverse (2040311201), we get a palindrome (3061441603).

The spelling of 1021130402 in words is "one billion, twenty-one million, one hundred thirty thousand, four hundred two".