12401335124 has 6 divisors (see below), whose sum is σ = 21702336474. Its totient is φ = 6200667560.

The previous prime is 12401335123. The next prime is 12401335129. The reversal of 12401335124 is 42153310421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9669182224 + 2732152900 = 98332^2 + 52270^2 .

It is a super-2 number, since 2×12401335124² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12401335093 and 12401335102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401335123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550166887 + ... + 1550166894.

It is an arithmetic number, because the mean of its divisors is an integer number (3617056079).

Almost surely, 2^12401335124 is an apocalyptic number.

It is an amenable number.

12401335124 is a deficient number, since it is larger than the sum of its proper divisors (9301001350).

12401335124 is a wasteful number, since it uses less digits than its factorization.

12401335124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100333785 (or 3100333783 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12401335124 its reverse (42153310421), we get a palindrome (54554645545).

The spelling of 12401335124 in words is "twelve billion, four hundred one million, three hundred thirty-five thousand, one hundred twenty-four".