124111297440 has 864 divisors, whose sum is σ = 493807781376. Its totient is φ = 29232783360.

The previous prime is 124111297439. The next prime is 124111297463. The reversal of 124111297440 is 44792111421.

It is a happy number.

124111297440 is a `hidden beast` number, since 12 + 4 + 1 + 112 + 97 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a super-2 number, since 2×124111297440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 124111297395 and 124111297404.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1394508916 + ... + 1394509004.

It is an arithmetic number, because the mean of its divisors is an integer number (571536784).

Almost surely, 2^124111297440 is an apocalyptic number.

124111297440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124111297440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246903890688).

124111297440 is an abundant number, since it is smaller than the sum of its proper divisors (369696483936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124111297440 is an equidigital number, since it uses as much as digits as its factorization.

124111297440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 124111297440 in words is "one hundred twenty-four billion, one hundred eleven million, two hundred ninety-seven thousand, four hundred forty".