1202747473021 has 4 divisors (see below), whose sum is σ = 1203340253500. Its totient is φ = 1202154692544.

The previous prime is 1202747472989. The next prime is 1202747473043. The reversal of 1202747473021 is 1203747472021.

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 865634856025 + 337112616996 = 930395^2 + 580614^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202747473021 - 2⁵ = 1202747472989 is a prime.

It is a super-2 number, since 2×1202747473021² (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 (1202747473091) 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, 296387196 + ... + 296391253.

It is an arithmetic number, because the mean of its divisors is an integer number (300835063375).

Almost surely, 2^{1202747473021} is an apocalyptic number.

It is an amenable number.

1202747473021 is a deficient number, since it is larger than the sum of its proper divisors (592780479).

1202747473021 is an equidigital number, since it uses as much as digits as its factorization.

1202747473021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592780478.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 1202747473021 in words is "one trillion, two hundred two billion, seven hundred forty-seven million, four hundred seventy-three thousand, twenty-one".