101011111002 has 12 divisors (see below), whose sum is σ = 218857407210. Its totient is φ = 33670370328.

The previous prime is 101011111001. The next prime is 101011111021. The reversal of 101011111002 is 200111110101.

It can be written as a sum of positive squares in only one way, i.e., 57979342521 + 43031768481 = 240789^2 + 207441^2 .

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

It is not an unprimeable number, because it can be changed into a prime (101011111001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2805864177 + ... + 2805864212.

Almost surely, 2^101011111002 is an apocalyptic number.

101011111002 is an abundant number, since it is smaller than the sum of its proper divisors (117846296208).

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

101011111002 is a wasteful number, since it uses less digits than its factorization.

101011111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611728397 (or 5611728394 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 101011111002 its reverse (200111110101), we get a palindrome (301122221103).

Subtracting 101011111002 from its reverse (200111110101), we obtain a palindrome (99099999099).

The spelling of 101011111002 in words is "one hundred one billion, eleven million, one hundred eleven thousand, two".