1523023240234 has 16 divisors (see below), whose sum is σ = 2316328171848. Its totient is φ = 750918339072.

The previous prime is 1523023240231. The next prime is 1523023240241. The reversal of 1523023240234 is 4320423203251.

It can be written as a sum of positive squares in 4 ways, for example, as 902969361009 + 620053879225 = 950247^2 + 787435^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1523023240196 and 1523023240205.

It is not an unprimeable number, because it can be changed into a prime (1523023240231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440077 + ... + 1799920.

Almost surely, 2^{1523023240234} is an apocalyptic number.

1523023240234 is a deficient number, since it is larger than the sum of its proper divisors (793304931614).

1523023240234 is a wasteful number, since it uses less digits than its factorization.

1523023240234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244729.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 1523023240234 its reverse (4320423203251), we get a palindrome (5843446443485).

The spelling of 1523023240234 in words is "one trillion, five hundred twenty-three billion, twenty-three million, two hundred forty thousand, two hundred thirty-four".