1202021013 has 8 divisors (see below), whose sum is σ = 1605626848. Its totient is φ = 799881264.

The previous prime is 1202021003. The next prime is 1202021027. The reversal of 1202021013 is 3101202021.

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

It is not a de Polignac number, because 1202021013 - 2⁶ = 1202020949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202021013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202021003) 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, 364606 + ... + 367887.

It is an arithmetic number, because the mean of its divisors is an integer number (200703356).

Almost surely, 2^1202021013 is an apocalyptic number.

It is an amenable number.

1202021013 is a deficient number, since it is larger than the sum of its proper divisors (403605835).

1202021013 is an equidigital number, since it uses as much as digits as its factorization.

1202021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733043.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1202021013 is about 34670.1746894936. The cubic root of 1202021013 is about 1063.2548031373.

Adding to 1202021013 its reverse (3101202021), we get a palindrome (4303223034).

It can be divided in two parts, 12020 and 21013, that added together give a palindrome (33033).

The spelling of 1202021013 in words is "one billion, two hundred two million, twenty-one thousand, thirteen".