1300999431 has 4 divisors (see below), whose sum is σ = 1734665912. Its totient is φ = 867332952.

The previous prime is 1300999429. The next prime is 1300999451. The reversal of 1300999431 is 1349990031.

1300999431 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1300999431 - 2¹ = 1300999429 is a prime.

It is a super-2 number, since 2×1300999431² = 3385199038924647522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1300999431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300999451) 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, 216833236 + ... + 216833241.

It is an arithmetic number, because the mean of its divisors is an integer number (433666478).

Almost surely, 2^1300999431 is an apocalyptic number.

1300999431 is a deficient number, since it is larger than the sum of its proper divisors (433666481).

1300999431 is an equidigital number, since it uses as much as digits as its factorization.

1300999431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433666480.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 1300999431 is about 36069.3697061648. The cubic root of 1300999431 is about 1091.6724965159.

The spelling of 1300999431 in words is "one billion, three hundred million, nine hundred ninety-nine thousand, four hundred thirty-one".