124520523420 has 48 divisors (see below), whose sum is σ = 348683156640. Its totient is φ = 33203026176.

The previous prime is 124520523353. The next prime is 124520523427. The reversal of 124520523420 is 24325025421.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124520523427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834246 + ... + 972114.

It is an arithmetic number, because the mean of its divisors is an integer number (7264232430).

Almost surely, 2^124520523420 is an apocalyptic number.

124520523420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124520523420 is an abundant number, since it is smaller than the sum of its proper divisors (224162633220).

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

124520523420 is a wasteful number, since it uses less digits than its factorization.

124520523420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152934 (or 152932 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 124520523420 its reverse (24325025421), we get a palindrome (148845548841).

The spelling of 124520523420 in words is "one hundred twenty-four billion, five hundred twenty million, five hundred twenty-three thousand, four hundred twenty".