1202020313 has 32 divisors (see below), whose sum is σ = 1391040000. Its totient is φ = 1029480192.

The previous prime is 1202020307. The next prime is 1202020349. The reversal of 1202020313 is 3130202021.

It is a happy number.

It is not a de Polignac number, because 1202020313 - 2²² = 1197826009 is a prime.

It is a super-3 number, since 3×1202020313³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202020213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4468343 + ... + 4468611.

It is an arithmetic number, because the mean of its divisors is an integer number (43470000).

Almost surely, 2^1202020313 is an apocalyptic number.

1202020313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1202020313 is a deficient number, since it is larger than the sum of its proper divisors (189019687).

1202020313 is a wasteful number, since it uses less digits than its factorization.

1202020313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1202020313 is about 34670.1645943598. The cubic root of 1202020313 is about 1063.2545967409.

Adding to 1202020313 its reverse (3130202021), we get a palindrome (4332222334).

The spelling of 1202020313 in words is "one billion, two hundred two million, twenty thousand, three hundred thirteen".