1301203940 has 12 divisors (see below), whose sum is σ = 2732528316. Its totient is φ = 520481568.

The previous prime is 1301203931. The next prime is 1301203949. The reversal of 1301203940 is 493021031.

It is an interprime number because it is at equal distance from previous prime (1301203931) and next prime (1301203949).

It can be written as a sum of positive squares in 2 ways, for example, as 306180004 + 995023936 = 17498^2 + 31544^2 .

It is not an unprimeable number, because it can be changed into a prime (1301203949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32530079 + ... + 32530118.

It is an arithmetic number, because the mean of its divisors is an integer number (227710693).

Almost surely, 2^1301203940 is an apocalyptic number.

1301203940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301203940 is an abundant number, since it is smaller than the sum of its proper divisors (1431324376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301203940 is a wasteful number, since it uses less digits than its factorization.

1301203940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65060206 (or 65060204 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1301203940 is about 36072.2045347938. The cubic root of 1301203940 is about 1091.7296948893.

Adding to 1301203940 its reverse (493021031), we get a palindrome (1794224971).

The spelling of 1301203940 in words is "one billion, three hundred one million, two hundred three thousand, nine hundred forty".