11703123128 has 8 divisors (see below), whose sum is σ = 21943355880. Its totient is φ = 5851561560.

The previous prime is 11703123127. The next prime is 11703123139. The reversal of 11703123128 is 82132130711.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 11703123128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11703123127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 731445188 + ... + 731445203.

It is an arithmetic number, because the mean of its divisors is an integer number (2742919485).

Almost surely, 2^11703123128 is an apocalyptic number.

It is an amenable number.

11703123128 is a deficient number, since it is larger than the sum of its proper divisors (10240232752).

11703123128 is a wasteful number, since it uses less digits than its factorization.

11703123128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462890397 (or 1462890393 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 11703123128 its reverse (82132130711), we get a palindrome (93835253839).

The spelling of 11703123128 in words is "eleven billion, seven hundred three million, one hundred twenty-three thousand, one hundred twenty-eight".