103131112312021 has 8 divisors (see below), whose sum is σ = 103159481648960. Its totient is φ = 103102746784128.

The previous prime is 103131112312013. The next prime is 103131112312027. The reversal of 103131112312021 is 120213211131301.

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 103131112312021 - 2³ = 103131112312013 is a prime.

It is a super-2 number, since 2×103131112312021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103131112311983 and 103131112312001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103131112312027) 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, 53635270 + ... + 55524808.

It is an arithmetic number, because the mean of its divisors is an integer number (12894935206120).

Almost surely, 2^{103131112312021} is an apocalyptic number.

It is an amenable number.

103131112312021 is a deficient number, since it is larger than the sum of its proper divisors (28369336939).

103131112312021 is an equidigital number, since it uses as much as digits as its factorization.

103131112312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904523.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 103131112312021 its reverse (120213211131301), we get a palindrome (223344323443322).

The spelling of 103131112312021 in words is "one hundred three trillion, one hundred thirty-one billion, one hundred twelve million, three hundred twelve thousand, twenty-one".