1020444103400 has 48 divisors (see below), whose sum is σ = 2382459566400. Its totient is φ = 406469766080.

The previous prime is 1020444103397. The next prime is 1020444103403. The reversal of 1020444103400 is 43014440201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020444103397) and next prime (1020444103403).

It is not an unprimeable number, because it can be changed into a prime (1020444103403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10626302 + ... + 10721901.

It is an arithmetic number, because the mean of its divisors is an integer number (49634574300).

Almost surely, 2^{1020444103400} is an apocalyptic number.

1020444103400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020444103400 is an abundant number, since it is smaller than the sum of its proper divisors (1362015463000).

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

1020444103400 is a wasteful number, since it uses less digits than its factorization.

1020444103400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21348458 (or 21348449 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1020444103400 its reverse (43014440201), we get a palindrome (1063458543601).

The spelling of 1020444103400 in words is "one trillion, twenty billion, four hundred forty-four million, one hundred three thousand, four hundred".