620425213171031 has 8 divisors (see below), whose sum is σ = 653093235849600. Its totient is φ = 587758596901560.

The previous prime is 620425213171013. The next prime is 620425213171063. The reversal of 620425213171031 is 130171312524026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620425213171031 - 2¹⁴ = 620425213154647 is a prime.

It is a super-2 number, since 2×620425213171031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620425213171091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350696705 + ... + 352461386.

It is an arithmetic number, because the mean of its divisors is an integer number (81636654481200).

Almost surely, 2^{620425213171031} is an apocalyptic number.

620425213171031 is a deficient number, since it is larger than the sum of its proper divisors (32668022678569).

620425213171031 is a wasteful number, since it uses less digits than its factorization.

620425213171031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703204549.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 620425213171031 its reverse (130171312524026), we get a palindrome (750596525695057).

The spelling of 620425213171031 in words is "six hundred twenty trillion, four hundred twenty-five billion, two hundred thirteen million, one hundred seventy-one thousand, thirty-one".