1031213310 has 64 divisors (see below), whose sum is σ = 2557481472. Its totient is φ = 265908096.

The previous prime is 1031213299. The next prime is 1031213311. The reversal of 1031213310 is 133121301.

It is a super-2 number, since 2×1031213310² = 2126801781442312200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1031213310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031213311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182589 + ... + 188151.

It is an arithmetic number, because the mean of its divisors is an integer number (39960648).

Almost surely, 2^1031213310 is an apocalyptic number.

1031213310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031213310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278740736).

1031213310 is an abundant number, since it is smaller than the sum of its proper divisors (1526268162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031213310 is a wasteful number, since it uses less digits than its factorization.

1031213310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1031213310 is about 32112.5101790564. The cubic root of 1031213310 is about 1010.2980233491.

Adding to 1031213310 its reverse (133121301), we get a palindrome (1164334611).

The spelling of 1031213310 in words is "one billion, thirty-one million, two hundred thirteen thousand, three hundred ten".