124681356802 has 4 divisors (see below), whose sum is σ = 187022035206. Its totient is φ = 62340678400.

The previous prime is 124681356797. The next prime is 124681356827. The reversal of 124681356802 is 208653186421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 208653186421 = 67 ⋅3114226663.

It can be written as a sum of positive squares in only one way, i.e., 103528854081 + 21152502721 = 321759^2 + 145439^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31170339199 + ... + 31170339202.

Almost surely, 2^124681356802 is an apocalyptic number.

124681356802 is a deficient number, since it is larger than the sum of its proper divisors (62340678404).

124681356802 is an equidigital number, since it uses as much as digits as its factorization.

124681356802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62340678403.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 124681356802 in words is "one hundred twenty-four billion, six hundred eighty-one million, three hundred fifty-six thousand, eight hundred two".