1023121004 has 24 divisors (see below), whose sum is σ = 1842559488. Its totient is φ = 496842320.

The previous prime is 1023120977. The next prime is 1023121019. The reversal of 1023121004 is 4001213201.

It is a self number, because there is not a number n which added to its sum of digits gives 1023121004.

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, 3857 + ... + 45399.

It is an arithmetic number, because the mean of its divisors is an integer number (76773312).

Almost surely, 2^1023121004 is an apocalyptic number.

It is an amenable number.

1023121004 is a deficient number, since it is larger than the sum of its proper divisors (819438484).

1023121004 is a wasteful number, since it uses less digits than its factorization.

1023121004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41725 (or 41723 counting only the distinct ones).

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

The square root of 1023121004 is about 31986.2627388696. The cubic root of 1023121004 is about 1007.6483548651.

Adding to 1023121004 its reverse (4001213201), we get a palindrome (5024334205).

The spelling of 1023121004 in words is "one billion, twenty-three million, one hundred twenty-one thousand, four".