72125330123420 has 24 divisors (see below), whose sum is σ = 173100792296544. Its totient is φ = 24728684613696.

The previous prime is 72125330123419. The next prime is 72125330123449. The reversal of 72125330123420 is 2432103352127.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257590464587 + ... + 257590464866.

It is an arithmetic number, because the mean of its divisors is an integer number (7212533012356).

Almost surely, 2^{72125330123420} is an apocalyptic number.

72125330123420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72125330123420 is an abundant number, since it is smaller than the sum of its proper divisors (100975462173124).

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

72125330123420 is a wasteful number, since it uses less digits than its factorization.

72125330123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515180929469 (or 515180929467 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

Adding to 72125330123420 its reverse (2432103352127), we get a palindrome (74557433475547).

The spelling of 72125330123420 in words is "seventy-two trillion, one hundred twenty-five billion, three hundred thirty million, one hundred twenty-three thousand, four hundred twenty".