1011312111210 has 16 divisors (see below), whose sum is σ = 2427149066976. Its totient is φ = 269683229648.

The previous prime is 1011312111203. The next prime is 1011312111259. The reversal of 1011312111210 is 121112131101.

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 1011312111210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16855201824 + ... + 16855201883.

It is an arithmetic number, because the mean of its divisors is an integer number (151696816686).

Almost surely, 2^{1011312111210} is an apocalyptic number.

1011312111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011312111210 is an abundant number, since it is smaller than the sum of its proper divisors (1415836955766).

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

1011312111210 is a wasteful number, since it uses less digits than its factorization.

1011312111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33710403717.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1011312111210 its reverse (121112131101), we get a palindrome (1132424242311).

The spelling of 1011312111210 in words is "one trillion, eleven billion, three hundred twelve million, one hundred eleven thousand, two hundred ten".