1002020112111 has 32 divisors (see below), whose sum is σ = 1389804226560. Its totient is φ = 641391657984.

The previous prime is 1002020112101. The next prime is 1002020112143. The reversal of 1002020112111 is 1112110202001.

It is not a de Polignac number, because 1002020112111 - 2¹³ = 1002020103919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002020112101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11226486 + ... + 11315388.

It is an arithmetic number, because the mean of its divisors is an integer number (43431382080).

Almost surely, 2^{1002020112111} is an apocalyptic number.

1002020112111 is a deficient number, since it is larger than the sum of its proper divisors (387784114449).

1002020112111 is a wasteful number, since it uses less digits than its factorization.

1002020112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89655.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1002020112111 its reverse (1112110202001), we get a palindrome (2114130314112).

The spelling of 1002020112111 in words is "one trillion, two billion, twenty million, one hundred twelve thousand, one hundred eleven".