10203021321947 has 2 divisors, whose sum is σ = 10203021321948. Its totient is φ = 10203021321946.

The previous prime is 10203021321919. The next prime is 10203021322037. The reversal of 10203021321947 is 74912312030201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10203021321947 - 2¹² = 10203021317851 is a prime.

It is a super-2 number, since 2×10203021321947² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10203021321907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101510660973 + 5101510660974.

It is an arithmetic number, because the mean of its divisors is an integer number (5101510660974).

Almost surely, 2^{10203021321947} is an apocalyptic number.

10203021321947 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203021321947 is an equidigital number, since it uses as much as digits as its factorization.

10203021321947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 10203021321947 in words is "ten trillion, two hundred three billion, twenty-one million, three hundred twenty-one thousand, nine hundred forty-seven".