1031213201330 has 32 divisors (see below), whose sum is σ = 2005273098864. Its totient is φ = 379554506496.

The previous prime is 1031213201311. The next prime is 1031213201401. The reversal of 1031213201330 is 331023121301.

It can be written as a sum of positive squares in 8 ways, for example, as 228140924881 + 803072276449 = 477641^2 + 896143^2 .

It is a super-2 number, since 2×1031213201330² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12470477 + ... + 12552896.

Almost surely, 2^{1031213201330} is an apocalyptic number.

1031213201330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031213201330 is a deficient number, since it is larger than the sum of its proper divisors (974059897534).

1031213201330 is a wasteful number, since it uses less digits than its factorization.

1031213201330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25023710.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1031213201330 its reverse (331023121301), we get a palindrome (1362236322631).

The spelling of 1031213201330 in words is "one trillion, thirty-one billion, two hundred thirteen million, two hundred one thousand, three hundred thirty".