1021311130 has 16 divisors (see below), whose sum is σ = 2100983040. Its totient is φ = 350163792.

The previous prime is 1021311127. The next prime is 1021311133. The reversal of 1021311130 is 311131201.

It is an interprime number because it is at equal distance from previous prime (1021311127) and next prime (1021311133).

It is a self number, because there is not a number n which added to its sum of digits gives 1021311130.

It is not an unprimeable number, because it can be changed into a prime (1021311133) 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, 7295010 + ... + 7295149.

It is an arithmetic number, because the mean of its divisors is an integer number (131311440).

Almost surely, 2^1021311130 is an apocalyptic number.

1021311130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021311130 is an abundant number, since it is smaller than the sum of its proper divisors (1079671910).

1021311130 is a wasteful number, since it uses less digits than its factorization.

1021311130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14590173.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1021311130 is about 31957.9587896349. The cubic root of 1021311130 is about 1007.0538364004.

Adding to 1021311130 its reverse (311131201), we get a palindrome (1332442331).

The spelling of 1021311130 in words is "one billion, twenty-one million, three hundred eleven thousand, one hundred thirty".