1031121101120 has 112 divisors (see below), whose sum is σ = 2690584985088. Its totient is φ = 373271439360.

The previous prime is 1031121101099. The next prime is 1031121101137. The reversal of 1031121101120 is 211011211301.

It is a junction number, because it is equal to n+sod(n) for n = 1031121101095 and 1031121101104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128162 + ... + 1441758.

It is an arithmetic number, because the mean of its divisors is an integer number (24023080224).

Almost surely, 2^{1031121101120} is an apocalyptic number.

1031121101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031121101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1345292492544).

1031121101120 is an abundant number, since it is smaller than the sum of its proper divisors (1659463883968).

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

1031121101120 is a wasteful number, since it uses less digits than its factorization.

1031121101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313848 (or 1313838 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1031121101120 its reverse (211011211301), we get a palindrome (1242132312421).

The spelling of 1031121101120 in words is "one trillion, thirty-one billion, one hundred twenty-one million, one hundred one thousand, one hundred twenty".