1021331102434 has 16 divisors (see below), whose sum is σ = 1541981750400. Its totient is φ = 507346737264.

The previous prime is 1021331102423. The next prime is 1021331102479. The reversal of 1021331102434 is 4342011331201.

It is a junction number, because it is equal to n+sod(n) for n = 1021331102399 and 1021331102408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173674 + ... + 2601445.

It is an arithmetic number, because the mean of its divisors is an integer number (96373859400).

Almost surely, 2^{1021331102434} is an apocalyptic number.

1021331102434 is a deficient number, since it is larger than the sum of its proper divisors (520650647966).

1021331102434 is a wasteful number, since it uses less digits than its factorization.

1021331102434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775817.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1021331102434 its reverse (4342011331201), we get a palindrome (5363342433635).

The spelling of 1021331102434 in words is "one trillion, twenty-one billion, three hundred thirty-one million, one hundred two thousand, four hundred thirty-four".