1310103121220 has 12 divisors (see below), whose sum is σ = 2751216554604. Its totient is φ = 524041248480.

The previous prime is 1310103121193. The next prime is 1310103121277. The reversal of 1310103121220 is 221213010131.

It can be written as a sum of positive squares in 2 ways, for example, as 751005959236 + 559097161984 = 866606^2 + 747728^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32752578011 + ... + 32752578050.

It is an arithmetic number, because the mean of its divisors is an integer number (229268046217).

Almost surely, 2^{1310103121220} is an apocalyptic number.

1310103121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310103121220 is an abundant number, since it is smaller than the sum of its proper divisors (1441113433384).

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

1310103121220 is a wasteful number, since it uses less digits than its factorization.

1310103121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65505156070 (or 65505156068 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1310103121220 its reverse (221213010131), we get a palindrome (1531316131351).

The spelling of 1310103121220 in words is "one trillion, three hundred ten billion, one hundred three million, one hundred twenty-one thousand, two hundred twenty".