1012103403840 has 168 divisors, whose sum is σ = 3500663905440. Its totient is φ = 268386315264.

The previous prime is 1012103403833. The next prime is 1012103403859. The reversal of 1012103403840 is 483043012101.

1012103403840 is a `hidden beast` number, since 1 + 0 + 1 + 210 + 3 + 403 + 8 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466114 + ... + 1497153.

Almost surely, 2^{1012103403840} is an apocalyptic number.

1012103403840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012103403840 is an abundant number, since it is smaller than the sum of its proper divisors (2488560501600).

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

1012103403840 is a wasteful number, since it uses less digits than its factorization.

1012103403840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963469 (or 1963456 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1012103403840 its reverse (483043012101), we get a palindrome (1495146415941).

The spelling of 1012103403840 in words is "one trillion, twelve billion, one hundred three million, four hundred three thousand, eight hundred forty".