1031213121010 has 32 divisors (see below), whose sum is σ = 1977418215360. Its totient is φ = 386067354048.

The previous prime is 1031213120983. The next prime is 1031213121019. The reversal of 1031213121010 is 101213121301.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1031213121019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32679637 + ... + 32711176.

It is an arithmetic number, because the mean of its divisors is an integer number (61794319230).

Almost surely, 2^{1031213121010} is an apocalyptic number.

1031213121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031213121010 is a deficient number, since it is larger than the sum of its proper divisors (946205094350).

1031213121010 is a wasteful number, since it uses less digits than its factorization.

1031213121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65390922.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1031213121010 its reverse (101213121301), we get a palindrome (1132426242311).

The spelling of 1031213121010 in words is "one trillion, thirty-one billion, two hundred thirteen million, one hundred twenty-one thousand, ten".