1203111215040 has 112 divisors (see below), whose sum is σ = 4365575004672. Its totient is φ = 274996847616.

The previous prime is 1203111214961. The next prime is 1203111215041. The reversal of 1203111215040 is 405121113021.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1203111214998 and 1203111215016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203111215041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89510484 + ... + 89523923.

It is an arithmetic number, because the mean of its divisors is an integer number (38978348256).

Almost surely, 2^{1203111215040} is an apocalyptic number.

1203111215040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203111215040 is an abundant number, since it is smaller than the sum of its proper divisors (3162463789632).

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

1203111215040 is a wasteful number, since it uses less digits than its factorization.

1203111215040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179034434 (or 179034424 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 1203111215040 its reverse (405121113021), we get a palindrome (1608232328061).

The spelling of 1203111215040 in words is "one trillion, two hundred three billion, one hundred eleven million, two hundred fifteen thousand, forty".