1031003002020 has 48 divisors (see below), whose sum is σ = 2887306507008. Its totient is φ = 274886695680.

The previous prime is 1031003002019. The next prime is 1031003002031. The reversal of 1031003002020 is 202003001301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1031003001987 and 1031003002005.

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, 1131121 + ... + 1827960.

It is an arithmetic number, because the mean of its divisors is an integer number (60152218896).

Almost surely, 2^{1031003002020} is an apocalyptic number.

1031003002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031003002020 is an abundant number, since it is smaller than the sum of its proper divisors (1856303504988).

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

1031003002020 is a wasteful number, since it uses less digits than its factorization.

1031003002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964900 (or 2964898 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 1031003002020 its reverse (202003001301), we get a palindrome (1233006003321).

The spelling of 1031003002020 in words is "one trillion, thirty-one billion, three million, two thousand, twenty".