123465431501 has 2 divisors, whose sum is σ = 123465431502. Its totient is φ = 123465431500.

The previous prime is 123465431491. The next prime is 123465431527. The reversal of 123465431501 is 105134564321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122699581225 + 765850276 = 350285^2 + 27674^2 .

It is a cyclic number.

It is not a de Polignac number, because 123465431501 - 2²² = 123461237197 is a prime.

It is a super-2 number, since 2×123465431501² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123465431591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61732715750 + 61732715751.

It is an arithmetic number, because the mean of its divisors is an integer number (61732715751).

Almost surely, 2^123465431501 is an apocalyptic number.

It is an amenable number.

123465431501 is a deficient number, since it is larger than the sum of its proper divisors (1).

123465431501 is an equidigital number, since it uses as much as digits as its factorization.

123465431501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 123465431501 its reverse (105134564321), we get a palindrome (228599995822).

The spelling of 123465431501 in words is "one hundred twenty-three billion, four hundred sixty-five million, four hundred thirty-one thousand, five hundred one".