23155125743402 has 4 divisors (see below), whose sum is σ = 34732688615106. Its totient is φ = 11577562871700.

The previous prime is 23155125743401. The next prime is 23155125743531. The reversal of 23155125743402 is 20434752155132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22083053946121 + 1072071797281 = 4699261^2 + 1035409^2 .

It is not an unprimeable number, because it can be changed into a prime (23155125743401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5788781435849 + ... + 5788781435852.

Almost surely, 2^{23155125743402} is an apocalyptic number.

23155125743402 is a deficient number, since it is larger than the sum of its proper divisors (11577562871704).

23155125743402 is a wasteful number, since it uses less digits than its factorization.

23155125743402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11577562871703.

The product of its (nonzero) digits is 1008000, while the sum is 44.

Adding to 23155125743402 its reverse (20434752155132), we get a palindrome (43589877898534).

The spelling of 23155125743402 in words is "twenty-three trillion, one hundred fifty-five billion, one hundred twenty-five million, seven hundred forty-three thousand, four hundred two".