10111120002 has 20 divisors (see below), whose sum is σ = 22656398886. Its totient is φ = 3370373280.

The previous prime is 10111120001. The next prime is 10111120049. The reversal of 10111120002 is 20002111101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8261173881 + 1849946121 = 90891^2 + 43011^2 .

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 (10111120001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31206999 + ... + 31207322.

Almost surely, 2^10111120002 is an apocalyptic number.

10111120002 is an abundant number, since it is smaller than the sum of its proper divisors (12545278884).

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

10111120002 is an equidigital number, since it uses as much as digits as its factorization.

10111120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62414335 (or 62414326 counting only the distinct ones).

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

Adding to 10111120002 its reverse (20002111101), we get a palindrome (30113231103).

The spelling of 10111120002 in words is "ten billion, one hundred eleven million, one hundred twenty thousand, two".