126124354420 has 12 divisors (see below), whose sum is σ = 264861144324. Its totient is φ = 50449741760.

The previous prime is 126124354381. The next prime is 126124354463. The reversal of 126124354420 is 24453421621.

It can be written as a sum of positive squares in 2 ways, for example, as 61890493284 + 64233861136 = 248778^2 + 253444^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3153108841 + ... + 3153108880.

It is an arithmetic number, because the mean of its divisors is an integer number (22071762027).

Almost surely, 2^126124354420 is an apocalyptic number.

126124354420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126124354420 is an abundant number, since it is smaller than the sum of its proper divisors (138736789904).

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

126124354420 is a wasteful number, since it uses less digits than its factorization.

126124354420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306217730 (or 6306217728 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 126124354420 in words is "one hundred twenty-six billion, one hundred twenty-four million, three hundred fifty-four thousand, four hundred twenty".