1361424031 has 4 divisors (see below), whose sum is σ = 1485189864. Its totient is φ = 1237658200.

The previous prime is 1361423977. The next prime is 1361424041. The reversal of 1361424031 is 1304241631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361424031 is a prime.

It is a super-2 number, since 2×1361424031² = 3706950784368577922, 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 = 1361423987 and 1361424005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361424041) 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, 61882900 + ... + 61882921.

It is an arithmetic number, because the mean of its divisors is an integer number (371297466).

Almost surely, 2^1361424031 is an apocalyptic number.

1361424031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1361424031 is a deficient number, since it is larger than the sum of its proper divisors (123765833).

1361424031 is a wasteful number, since it uses less digits than its factorization.

1361424031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123765832.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1361424031 is about 36897.4800088028. The cubic root of 1361424031 is about 1108.3182147497.

Adding to 1361424031 its reverse (1304241631), we get a palindrome (2665665662).

The spelling of 1361424031 in words is "one billion, three hundred sixty-one million, four hundred twenty-four thousand, thirty-one".