1122601263 has 32 divisors (see below), whose sum is σ = 1803171840. Its totient is φ = 606877920.

The previous prime is 1122601247. The next prime is 1122601283. The reversal of 1122601263 is 3621062211.

It is not a de Polignac number, because 1122601263 - 2⁴ = 1122601247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122601213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376368 + ... + 379338.

It is an arithmetic number, because the mean of its divisors is an integer number (56349120).

Almost surely, 2^1122601263 is an apocalyptic number.

1122601263 is a deficient number, since it is larger than the sum of its proper divisors (680570577).

1122601263 is a wasteful number, since it uses less digits than its factorization.

1122601263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3947.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1122601263 is about 33505.2423211652. The cubic root of 1122601263 is about 1039.3021893762.

Adding to 1122601263 its reverse (3621062211), we get a palindrome (4743663474).

It can be divided in two parts, 112260 and 1263, that multiplied together give a triangular number (141784380 = T₁₆₈₃₉).

The spelling of 1122601263 in words is "one billion, one hundred twenty-two million, six hundred one thousand, two hundred sixty-three".