1011010020120 has 64 divisors (see below), whose sum is σ = 3370033404000. Its totient is φ = 269602671744.

The previous prime is 1011010020107. The next prime is 1011010020157. The reversal of 1011010020120 is 210200101101.

It is a happy number.

It is a super-3 number, since 3×1011010020120³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 468059115 + ... + 468061274.

Almost surely, 2^{1011010020120} is an apocalyptic number.

1011010020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011010020120 is an abundant number, since it is smaller than the sum of its proper divisors (2359023383880).

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

1011010020120 is a wasteful number, since it uses less digits than its factorization.

1011010020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936120409 (or 936120399 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1011010020120 its reverse (210200101101), we get a palindrome (1221210121221).

The spelling of 1011010020120 in words is "one trillion, eleven billion, ten million, twenty thousand, one hundred twenty".