123130531677 has 8 divisors (see below), whose sum is σ = 164209466016. Its totient is φ = 82069309232.

The previous prime is 123130531673. The next prime is 123130531697. The reversal of 123130531677 is 776135031321.

It is a happy number.

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 123130531677 - 2² = 123130531673 is a prime.

It is a super-2 number, since 2×123130531677² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123130531673) 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, 4411743 + ... + 4439564.

It is an arithmetic number, because the mean of its divisors is an integer number (20526183252).

Almost surely, 2^123130531677 is an apocalyptic number.

It is an amenable number.

123130531677 is a deficient number, since it is larger than the sum of its proper divisors (41078934339).

123130531677 is an equidigital number, since it uses as much as digits as its factorization.

123130531677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8855947.

The product of its (nonzero) digits is 79380, while the sum is 39.

Adding to 123130531677 its reverse (776135031321), we get a palindrome (899265562998).

The spelling of 123130531677 in words is "one hundred twenty-three billion, one hundred thirty million, five hundred thirty-one thousand, six hundred seventy-seven".