1301131031 has 4 divisors (see below), whose sum is σ = 1301513472. Its totient is φ = 1300748592.

The previous prime is 1301130983. The next prime is 1301131043. The reversal of 1301131031 is 1301311031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301131031 - 2¹⁰ = 1301130007 is a prime.

It is a super-2 number, since 2×1301131031² = 3385883919662245922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301130997 and 1301131015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301131231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186071 + ... + 192936.

It is an arithmetic number, because the mean of its divisors is an integer number (325378368).

Almost surely, 2^1301131031 is an apocalyptic number.

1301131031 is a deficient number, since it is larger than the sum of its proper divisors (382441).

1301131031 is an equidigital number, since it uses as much as digits as its factorization.

1301131031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382440.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1301131031 is about 36071.1939225748. The cubic root of 1301131031 is about 1091.7093039255.

Adding to 1301131031 its reverse (1301311031), we get a palindrome (2602442062).

The spelling of 1301131031 in words is "one billion, three hundred one million, one hundred thirty-one thousand, thirty-one".