1078105423 has 2 divisors, whose sum is σ = 1078105424. Its totient is φ = 1078105422.

The previous prime is 1078105409. The next prime is 1078105451. The reversal of 1078105423 is 3245018701.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1078105423 is a prime.

It is a super-2 number, since 2×1078105423² = 2324622606204017858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078105453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539052711 + 539052712.

It is an arithmetic number, because the mean of its divisors is an integer number (539052712).

Almost surely, 2^1078105423 is an apocalyptic number.

1078105423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078105423 is an equidigital number, since it uses as much as digits as its factorization.

1078105423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1078105423 is about 32834.5157265948. The cubic root of 1078105423 is about 1025.3852759064.

The spelling of 1078105423 in words is "one billion, seventy-eight million, one hundred five thousand, four hundred twenty-three".