1021554045030 has 128 divisors (see below), whose sum is σ = 2598380467200. Its totient is φ = 256318193664.

The previous prime is 1021554045013. The next prime is 1021554045047. The reversal of 1021554045030 is 305404551201.

It is an interprime number because it is at equal distance from previous prime (1021554045013) and next prime (1021554045047).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 136403526 + ... + 136411014.

It is an arithmetic number, because the mean of its divisors is an integer number (20299847400).

Almost surely, 2^{1021554045030} is an apocalyptic number.

1021554045030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021554045030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299190233600).

1021554045030 is an abundant number, since it is smaller than the sum of its proper divisors (1576826422170).

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

1021554045030 is a wasteful number, since it uses less digits than its factorization.

1021554045030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9118.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 1021554045030 its reverse (305404551201), we get a palindrome (1326958596231).

The spelling of 1021554045030 in words is "one trillion, twenty-one billion, five hundred fifty-four million, forty-five thousand, thirty".