10203012031321 has 8 divisors (see below), whose sum is σ = 10803960622440. Its totient is φ = 9602149152768.

The previous prime is 10203012031307. The next prime is 10203012031327. The reversal of 10203012031321 is 12313021030201.

It can be written as a sum of positive squares in 4 ways, for example, as 1986791735296 + 8216220296025 = 1409536^2 + 2866395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10203012031321 - 2⁷ = 10203012031193 is a prime.

It is a super-2 number, since 2×10203012031321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203012031327) 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, 21182976 + ... + 21659281.

It is an arithmetic number, because the mean of its divisors is an integer number (1350495077805).

Almost surely, 2^{10203012031321} is an apocalyptic number.

It is an amenable number.

10203012031321 is a deficient number, since it is larger than the sum of its proper divisors (600948591119).

10203012031321 is a wasteful number, since it uses less digits than its factorization.

10203012031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42856283.

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

Adding to 10203012031321 its reverse (12313021030201), we get a palindrome (22516033061522).

The spelling of 10203012031321 in words is "ten trillion, two hundred three billion, twelve million, thirty-one thousand, three hundred twenty-one".