2123143155156 has 48 divisors (see below), whose sum is σ = 5121295054848. Its totient is φ = 683882047200.

The previous prime is 2123143155097. The next prime is 2123143155157. The reversal of 2123143155156 is 6515513413212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123143155157) 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, 3924090 + ... + 4432241.

It is an arithmetic number, because the mean of its divisors is an integer number (106693646976).

Almost surely, 2^{2123143155156} is an apocalyptic number.

It is an amenable number.

2123143155156 is an abundant number, since it is smaller than the sum of its proper divisors (2998151899692).

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

2123143155156 is a wasteful number, since it uses less digits than its factorization.

2123143155156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8357052 (or 8357050 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

Adding to 2123143155156 its reverse (6515513413212), we get a palindrome (8638656568368).

The spelling of 2123143155156 in words is "two trillion, one hundred twenty-three billion, one hundred forty-three million, one hundred fifty-five thousand, one hundred fifty-six".