130820521737 has 16 divisors (see below), whose sum is σ = 177302312640. Its totient is φ = 85776456000.

The previous prime is 130820521729. The next prime is 130820521789. The reversal of 130820521737 is 737125028031.

It is not a de Polignac number, because 130820521737 - 2³ = 130820521729 is a prime.

It is a super-2 number, since 2×130820521737² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130820521695 and 130820521704.

It is not an unprimeable number, because it can be changed into a prime (130820520737) 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, 2739814 + ... + 2787152.

It is an arithmetic number, because the mean of its divisors is an integer number (11081394540).

Almost surely, 2^130820521737 is an apocalyptic number.

It is an amenable number.

130820521737 is a deficient number, since it is larger than the sum of its proper divisors (46481790903).

130820521737 is a wasteful number, since it uses less digits than its factorization.

130820521737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62504.

The product of its (nonzero) digits is 70560, while the sum is 39.

Adding to 130820521737 its reverse (737125028031), we get a palindrome (867945549768).

The spelling of 130820521737 in words is "one hundred thirty billion, eight hundred twenty million, five hundred twenty-one thousand, seven hundred thirty-seven".