1012123101102 has 64 divisors (see below), whose sum is σ = 2189290291200. Its totient is φ = 310720605696.

The previous prime is 1012123101097. The next prime is 1012123101109. The reversal of 1012123101102 is 2011013212101.

It is a super-2 number, since 2×1012123101102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012123101109) 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, 36175923 + ... + 36203889.

It is an arithmetic number, because the mean of its divisors is an integer number (34207660800).

Almost surely, 2^{1012123101102} is an apocalyptic number.

1012123101102 is an abundant number, since it is smaller than the sum of its proper divisors (1177167190098).

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

1012123101102 is a wasteful number, since it uses less digits than its factorization.

1012123101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35585.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1012123101102 its reverse (2011013212101), we get a palindrome (3023136313203).

The spelling of 1012123101102 in words is "one trillion, twelve billion, one hundred twenty-three million, one hundred one thousand, one hundred two".