124402013212440 has 64 divisors (see below), whose sum is σ = 373377314419200. Its totient is φ = 33158645764992.

The previous prime is 124402013212409. The next prime is 124402013212453. The reversal of 124402013212440 is 44212310204421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 124402013212398 and 124402013212407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237619072 + ... + 238142031.

It is an arithmetic number, because the mean of its divisors is an integer number (5834020537800).

Almost surely, 2^{124402013212440} is an apocalyptic number.

124402013212440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124402013212440 is an abundant number, since it is smaller than the sum of its proper divisors (248975301206760).

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

124402013212440 is a wasteful number, since it uses less digits than its factorization.

124402013212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475763296 (or 475763292 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 124402013212440 its reverse (44212310204421), we get a palindrome (168614323416861).

The spelling of 124402013212440 in words is "one hundred twenty-four trillion, four hundred two billion, thirteen million, two hundred twelve thousand, four hundred forty".