20156210031324 has 24 divisors (see below), whose sum is σ = 47039156760960. Its totient is φ = 6717593816944.

The previous prime is 20156210031299. The next prime is 20156210031343. The reversal of 20156210031324 is 42313001265102.

It is a super-3 number, since 3×20156210031324³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20156210031291 and 20156210031300.

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, 142784034 + ... + 142925129.

It is an arithmetic number, because the mean of its divisors is an integer number (1959964865040).

Almost surely, 2^{20156210031324} is an apocalyptic number.

It is an amenable number.

20156210031324 is an abundant number, since it is smaller than the sum of its proper divisors (26882946729636).

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

20156210031324 is a wasteful number, since it uses less digits than its factorization.

20156210031324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285715049 (or 285715047 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 20156210031324 its reverse (42313001265102), we get a palindrome (62469211296426).

The spelling of 20156210031324 in words is "twenty trillion, one hundred fifty-six billion, two hundred ten million, thirty-one thousand, three hundred twenty-four".