1203012111020 has 48 divisors (see below), whose sum is σ = 2571634185120. Its totient is φ = 472590414336.

The previous prime is 1203012111019. The next prime is 1203012111029. The reversal of 1203012111020 is 201112103021.

It is a junction number, because it is equal to n+sod(n) for n = 1203012110986 and 1203012111004.

It is not an unprimeable number, because it can be changed into a prime (1203012111029) 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, 725474 + ... + 1712406.

It is an arithmetic number, because the mean of its divisors is an integer number (53575712190).

Almost surely, 2^{1203012111020} is an apocalyptic number.

1203012111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203012111020 is an abundant number, since it is smaller than the sum of its proper divisors (1368622074100).

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

1203012111020 is a wasteful number, since it uses less digits than its factorization.

1203012111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988034 (or 988032 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1203012111020 its reverse (201112103021), we get a palindrome (1404124214041).

The spelling of 1203012111020 in words is "one trillion, two hundred three billion, twelve million, one hundred eleven thousand, twenty".