1031202420400 has 90 divisors (see below), whose sum is σ = 2614719794172. Its totient is φ = 390771388800.

The previous prime is 1031202420323. The next prime is 1031202420461. The reversal of 1031202420400 is 40242021301.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 3426246 + ... + 3715045.

Almost surely, 2^{1031202420400} is an apocalyptic number.

1031202420400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031202420400 is an abundant number, since it is smaller than the sum of its proper divisors (1583517373772).

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

1031202420400 is a wasteful number, since it uses less digits than its factorization.

1031202420400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7141347 (or 7141317 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1031202420400 its reverse (40242021301), we get a palindrome (1071444441701).

The spelling of 1031202420400 in words is "one trillion, thirty-one billion, two hundred two million, four hundred twenty thousand, four hundred".