1031450464021 has 4 divisors (see below), whose sum is σ = 1031515444972. Its totient is φ = 1031385483072.

The previous prime is 1031450463959. The next prime is 1031450464123. The reversal of 1031450464021 is 1204640541301.

1031450464021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 612564502225 + 418885961796 = 782665^2 + 647214^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031450464021 - 2⁷ = 1031450463893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031450465021) 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, 32466660 + ... + 32498413.

It is an arithmetic number, because the mean of its divisors is an integer number (257878861243).

Almost surely, 2^{1031450464021} is an apocalyptic number.

It is an amenable number.

1031450464021 is a deficient number, since it is larger than the sum of its proper divisors (64980951).

1031450464021 is an equidigital number, since it uses as much as digits as its factorization.

1031450464021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64980950.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 1031450464021 in words is "one trillion, thirty-one billion, four hundred fifty million, four hundred sixty-four thousand, twenty-one".