123254531401 has 4 divisors (see below), whose sum is σ = 130504797972. Its totient is φ = 116004264832.

The previous prime is 123254531383. The next prime is 123254531423. The reversal of 123254531401 is 104135452321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 90421091401 + 32833440000 = 300701^2 + 181200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123254531401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123254531471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3625133260 + ... + 3625133293.

It is an arithmetic number, because the mean of its divisors is an integer number (32626199493).

Almost surely, 2^123254531401 is an apocalyptic number.

It is an amenable number.

123254531401 is a deficient number, since it is larger than the sum of its proper divisors (7250266571).

123254531401 is an equidigital number, since it uses as much as digits as its factorization.

123254531401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7250266570.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 123254531401 its reverse (104135452321), we get a palindrome (227389983722).

The spelling of 123254531401 in words is "one hundred twenty-three billion, two hundred fifty-four million, five hundred thirty-one thousand, four hundred one".