123635253153 has 16 divisors (see below), whose sum is σ = 173533006080. Its totient is φ = 78080993424.

The previous prime is 123635253127. The next prime is 123635253179. The reversal of 123635253153 is 351352536321.

It is an interprime number because it is at equal distance from previous prime (123635253127) and next prime (123635253179).

It is not a de Polignac number, because 123635253153 - 2¹² = 123635249057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123635253853) 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, 1164550 + ... + 1266272.

It is an arithmetic number, because the mean of its divisors is an integer number (10845812880).

Almost surely, 2^123635253153 is an apocalyptic number.

It is an amenable number.

123635253153 is a deficient number, since it is larger than the sum of its proper divisors (49897752927).

123635253153 is a wasteful number, since it uses less digits than its factorization.

123635253153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123068.

The product of its digits is 243000, while the sum is 39.

Adding to 123635253153 its reverse (351352536321), we get a palindrome (474987789474).

The spelling of 123635253153 in words is "one hundred twenty-three billion, six hundred thirty-five million, two hundred fifty-three thousand, one hundred fifty-three".