101020111002 has 24 divisors (see below), whose sum is σ = 218887294080. Its totient is φ = 33671772360.

The previous prime is 101020110991. The next prime is 101020111013. The reversal of 101020111002 is 200111020101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101020110991) and next prime (101020111013).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293649 + ... + 536907.

It is an arithmetic number, because the mean of its divisors is an integer number (9120303920).

Almost surely, 2^101020111002 is an apocalyptic number.

101020111002 is an abundant number, since it is smaller than the sum of its proper divisors (117867183078).

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

101020111002 is a wasteful number, since it uses less digits than its factorization.

101020111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266338 (or 266335 counting only the distinct ones).

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

Adding to 101020111002 its reverse (200111020101), we get a palindrome (301131131103).

Subtracting 101020111002 from its reverse (200111020101), we obtain a palindrome (99090909099).

The spelling of 101020111002 in words is "one hundred one billion, twenty million, one hundred eleven thousand, two".