1020002111111 has 8 divisors (see below), whose sum is σ = 1106343753984. Its totient is φ = 936587303680.

The previous prime is 1020002111101. The next prime is 1020002111113. The reversal of 1020002111111 is 1111112000201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020002111111 - 2¹⁸ = 1020001848967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020002111092 and 1020002111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020002111113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731708135 + ... + 731709528.

It is an arithmetic number, because the mean of its divisors is an integer number (138292969248).

Almost surely, 2^{1020002111111} is an apocalyptic number.

1020002111111 is a deficient number, since it is larger than the sum of its proper divisors (86341642873).

1020002111111 is a wasteful number, since it uses less digits than its factorization.

1020002111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463417721.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1020002111111 its reverse (1111112000201), we get a palindrome (2131114111312).

The spelling of 1020002111111 in words is "one trillion, twenty billion, two million, one hundred eleven thousand, one hundred eleven".