101002012111 has 32 divisors (see below), whose sum is σ = 137468878848. Its totient is φ = 71653559040.

The previous prime is 101002012081. The next prime is 101002012117. The reversal of 101002012111 is 111210200101.

It is not a de Polignac number, because 101002012111 - 2¹¹ = 101002010063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002012117) 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, 618031 + ... + 764176.

It is an arithmetic number, because the mean of its divisors is an integer number (4295902464).

Almost surely, 2^101002012111 is an apocalyptic number.

101002012111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101002012111 is a deficient number, since it is larger than the sum of its proper divisors (36466866737).

101002012111 is a wasteful number, since it uses less digits than its factorization.

101002012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382311.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101002012111 its reverse (111210200101), we get a palindrome (212212212212).

The spelling of 101002012111 in words is "one hundred one billion, two million, twelve thousand, one hundred eleven".