20111001102002 has 4 divisors (see below), whose sum is σ = 30166501653006. Its totient is φ = 10055500551000.

The previous prime is 20111001101969. The next prime is 20111001102007. The reversal of 20111001102002 is 20020110011102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15084127701241 + 5026873400761 = 3883829^2 + 2242069^2 .

It is not an unprimeable number, because it can be changed into a prime (20111001102007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027750275499 + ... + 5027750275502.

Almost surely, 2^{20111001102002} is an apocalyptic number.

20111001102002 is a deficient number, since it is larger than the sum of its proper divisors (10055500551004).

20111001102002 is a wasteful number, since it uses less digits than its factorization.

20111001102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055500551003.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20111001102002 its reverse (20020110011102), we get a palindrome (40131111113104).

The spelling of 20111001102002 in words is "twenty trillion, one hundred eleven billion, one million, one hundred two thousand, two".