2123100203012 has 48 divisors (see below), whose sum is σ = 4283825616000. Its totient is φ = 913882765824.

The previous prime is 2123100203011. The next prime is 2123100203117. The reversal of 2123100203012 is 2103020013212.

It is a super-2 number, since 2×2123100203012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (2123100203011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28294712 + ... + 28369647.

It is an arithmetic number, because the mean of its divisors is an integer number (89246367000).

Almost surely, 2^{2123100203012} is an apocalyptic number.

It is an amenable number.

2123100203012 is an abundant number, since it is smaller than the sum of its proper divisors (2160725412988).

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

2123100203012 is a wasteful number, since it uses less digits than its factorization.

2123100203012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56664428 (or 56664426 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2123100203012 its reverse (2103020013212), we get a palindrome (4226120216224).

The spelling of 2123100203012 in words is "two trillion, one hundred twenty-three billion, one hundred million, two hundred three thousand, twelve".