1020131215 has 8 divisors (see below), whose sum is σ = 1226013408. Its totient is φ = 814867680.

The previous prime is 1020131051. The next prime is 1020131251. The reversal of 1020131215 is 5121310201.

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

It is not a de Polignac number, because 1020131215 - 2⁹ = 1020130703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151027 + ... + 157636.

It is an arithmetic number, because the mean of its divisors is an integer number (153251676).

Almost surely, 2^1020131215 is an apocalyptic number.

1020131215 is a deficient number, since it is larger than the sum of its proper divisors (205882193).

1020131215 is an equidigital number, since it uses as much as digits as its factorization.

1020131215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309329.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1020131215 is about 31939.4930297899. The cubic root of 1020131215 is about 1006.6658724148.

Adding to 1020131215 its reverse (5121310201), we get a palindrome (6141441416).

The spelling of 1020131215 in words is "one billion, twenty million, one hundred thirty-one thousand, two hundred fifteen".