1023861002 has 4 divisors (see below), whose sum is σ = 1535791506. Its totient is φ = 511930500.

The previous prime is 1023860993. The next prime is 1023861017. The reversal of 1023861002 is 2001683201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1023424081 + 436921 = 31991^2 + 661^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255965249 + ... + 255965252.

Almost surely, 2^1023861002 is an apocalyptic number.

1023861002 is a deficient number, since it is larger than the sum of its proper divisors (511930504).

1023861002 is an equidigital number, since it uses as much as digits as its factorization.

1023861002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511930503.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1023861002 is about 31997.8280825434. The cubic root of 1023861002 is about 1007.8912319913.

The spelling of 1023861002 in words is "one billion, twenty-three million, eight hundred sixty-one thousand, two".