1031220130 has 16 divisors (see below), whose sum is σ = 1866928824. Its totient is φ = 410103040.

The previous prime is 1031220121. The next prime is 1031220133. The reversal of 1031220130 is 310221301.

It can be written as a sum of positive squares in 4 ways, for example, as 755095441 + 276124689 = 27479^2 + 16617^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1031220130.

It is not an unprimeable number, because it can be changed into a prime (1031220133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296311 + ... + 299770.

Almost surely, 2^1031220130 is an apocalyptic number.

1031220130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031220130 is a deficient number, since it is larger than the sum of its proper divisors (835708694).

1031220130 is a wasteful number, since it uses less digits than its factorization.

1031220130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596261.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1031220130 is about 32112.6163680258. The cubic root of 1031220130 is about 1010.3002505693.

Adding to 1031220130 its reverse (310221301), we get a palindrome (1341441431).

The spelling of 1031220130 in words is "one billion, thirty-one million, two hundred twenty thousand, one hundred thirty".