1301020202 has 4 divisors (see below), whose sum is σ = 1951530306. Its totient is φ = 650510100.

The previous prime is 1301020199. The next prime is 1301020211. The reversal of 1301020202 is 2020201031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2020201031 = 1693 ⋅1193267.

It can be written as a sum of positive squares in only one way, i.e., 900660121 + 400360081 = 30011^2 + 20009^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325255049 + ... + 325255052.

Almost surely, 2^1301020202 is an apocalyptic number.

1301020202 is a deficient number, since it is larger than the sum of its proper divisors (650510104).

1301020202 is an equidigital number, since it uses as much as digits as its factorization.

1301020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650510103.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1301020202 is about 36069.6576363015. The cubic root of 1301020202 is about 1091.6783061543.

Adding to 1301020202 its reverse (2020201031), we get a palindrome (3321221233).

The spelling of 1301020202 in words is "one billion, three hundred one million, twenty thousand, two hundred two".