102020012031313 has 4 divisors (see below), whose sum is σ = 102020043051828. Its totient is φ = 102019981010800.

The previous prime is 102020012031229. The next prime is 102020012031419. The reversal of 102020012031313 is 313130210020201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39447355788369 + 62572656242944 = 6280713^2 + 7910288^2 .

It is a cyclic number.

It is not a de Polignac number, because 102020012031313 - 2¹³ = 102020012023121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102020012031013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9900838 + ... + 17380063.

It is an arithmetic number, because the mean of its divisors is an integer number (25505010762957).

Almost surely, 2^{102020012031313} is an apocalyptic number.

It is an amenable number.

102020012031313 is a deficient number, since it is larger than the sum of its proper divisors (31020515).

102020012031313 is an equidigital number, since it uses as much as digits as its factorization.

102020012031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31020514.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102020012031313 its reverse (313130210020201), we get a palindrome (415150222051514).

The spelling of 102020012031313 in words is "one hundred two trillion, twenty billion, twelve million, thirty-one thousand, three hundred thirteen".