1020121015004 has 24 divisors (see below), whose sum is σ = 2197183725408. Its totient is φ = 403564357440.

The previous prime is 1020121014977. The next prime is 1020121015049. The reversal of 1020121015004 is 4005101210201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1401264767 + ... + 1401265494.

It is an arithmetic number, because the mean of its divisors is an integer number (91549321892).

Almost surely, 2^{1020121015004} is an apocalyptic number.

1020121015004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1020121015004 is an abundant number, since it is smaller than the sum of its proper divisors (1177062710404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020121015004 is a wasteful number, since it uses less digits than its factorization.

1020121015004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802530285 (or 2802530283 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 1020121015004 its reverse (4005101210201), we get a palindrome (5025222225205).

The spelling of 1020121015004 in words is "one trillion, twenty billion, one hundred twenty-one million, fifteen thousand, four".