1420532021213 has 4 divisors (see below), whose sum is σ = 1422535593180. Its totient is φ = 1418528449248.

The previous prime is 1420532021201. The next prime is 1420532021219. The reversal of 1420532021213 is 3121202350241.

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 683892612484 + 736639408729 = 826978^2 + 858277^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420532021213 - 2²² = 1420527826909 is a prime.

It is a super-2 number, since 2×1420532021213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420532021219) 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, 1001784920 + ... + 1001786337.

It is an arithmetic number, because the mean of its divisors is an integer number (355633898295).

Almost surely, 2^{1420532021213} is an apocalyptic number.

It is an amenable number.

1420532021213 is a deficient number, since it is larger than the sum of its proper divisors (2003571967).

1420532021213 is an equidigital number, since it uses as much as digits as its factorization.

1420532021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003571966.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1420532021213 its reverse (3121202350241), we get a palindrome (4541734371454).

The spelling of 1420532021213 in words is "one trillion, four hundred twenty billion, five hundred thirty-two million, twenty-one thousand, two hundred thirteen".