1020000100004 has 6 divisors (see below), whose sum is σ = 1785000175014. Its totient is φ = 510000050000.

The previous prime is 1020000100003. The next prime is 1020000100019. The reversal of 1020000100004 is 4000010000201.

It can be written as a sum of positive squares in only one way, i.e., 973774240000 + 46225860004 = 986800^2 + 215002^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020000099964 and 1020000100000.

It is not an unprimeable number, because it can be changed into a prime (1020000100003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127500012497 + ... + 127500012504.

It is an arithmetic number, because the mean of its divisors is an integer number (297500029169).

Almost surely, 2^{1020000100004} is an apocalyptic number.

It is an amenable number.

1020000100004 is a deficient number, since it is larger than the sum of its proper divisors (765000075010).

1020000100004 is a wasteful number, since it uses less digits than its factorization.

1020000100004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255000025005 (or 255000025003 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 1020000100004 its reverse (4000010000201), we get a palindrome (5020010100205).

The spelling of 1020000100004 in words is "one trillion, twenty billion, one hundred thousand, four".