1021011212013 has 24 divisors (see below), whose sum is σ = 1500954975072. Its totient is φ = 613702581408.

The previous prime is 1021011211999. The next prime is 1021011212027. The reversal of 1021011212013 is 3102121101201.

It is an interprime number because it is at equal distance from previous prime (1021011211999) and next prime (1021011212027).

It is not a de Polignac number, because 1021011212013 - 2¹² = 1021011207917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021011211983 and 1021011212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021011212413) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 7007331 + ... + 7151552.

It is an arithmetic number, because the mean of its divisors is an integer number (62539790628).

Almost surely, 2^{1021011212013} is an apocalyptic number.

1021011212013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1021011212013 is a deficient number, since it is larger than the sum of its proper divisors (479943763059).

1021011212013 is a wasteful number, since it uses less digits than its factorization.

1021011212013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14158985 (or 14158942 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1021011212013 its reverse (3102121101201), we get a palindrome (4123132313214).

The spelling of 1021011212013 in words is "one trillion, twenty-one billion, eleven million, two hundred twelve thousand, thirteen".