1023123144405 has 16 divisors (see below), whose sum is σ = 1644755315904. Its totient is φ = 543079582080.

The previous prime is 1023123144401. The next prime is 1023123144437. The reversal of 1023123144405 is 5044413213201.

It is not a de Polignac number, because 1023123144405 - 2² = 1023123144401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023123144401) 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, 161627664 + ... + 161633993.

It is an arithmetic number, because the mean of its divisors is an integer number (102797207244).

Almost surely, 2^{1023123144405} is an apocalyptic number.

1023123144405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1023123144405 is a deficient number, since it is larger than the sum of its proper divisors (621632171499).

1023123144405 is a wasteful number, since it uses less digits than its factorization.

1023123144405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323261876.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1023123144405 its reverse (5044413213201), we get a palindrome (6067536357606).

The spelling of 1023123144405 in words is "one trillion, twenty-three billion, one hundred twenty-three million, one hundred forty-four thousand, four hundred five".