1130551031 has 4 divisors (see below), whose sum is σ = 1131945864. Its totient is φ = 1129156200.

The previous prime is 1130551013. The next prime is 1130551033. The reversal of 1130551031 is 1301550311.

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-1130551031 is a prime.

It is a super-2 number, since 2×1130551031² = 2556291267390325922, 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 = 1130550994 and 1130551012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130551033) 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, 696200 + ... + 697821.

It is an arithmetic number, because the mean of its divisors is an integer number (282986466).

Almost surely, 2^1130551031 is an apocalyptic number.

1130551031 is a deficient number, since it is larger than the sum of its proper divisors (1394833).

1130551031 is an equidigital number, since it uses as much as digits as its factorization.

1130551031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394832.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 1130551031 is about 33623.6677208183. The cubic root of 1130551031 is about 1041.7497145464.

The spelling of 1130551031 in words is "one billion, one hundred thirty million, five hundred fifty-one thousand, thirty-one".