1020231220100 has 36 divisors (see below), whose sum is σ = 2290243193700. Its totient is φ = 394020332160.

The previous prime is 1020231220097. The next prime is 1020231220103. The reversal of 1020231220100 is 10221320201.

It is a happy number.

1020231220100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1020231220097) and next prime (1020231220103).

It can be written as a sum of positive squares in 6 ways, for example, as 159347865856 + 860883354244 = 399184^2 + 927838^2 .

It is not an unprimeable number, because it can be changed into a prime (1020231220103) 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, 175899035 + ... + 175904834.

Almost surely, 2^{1020231220100} is an apocalyptic number.

1020231220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020231220100 is an abundant number, since it is smaller than the sum of its proper divisors (1270011973600).

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

1020231220100 is a wasteful number, since it uses less digits than its factorization.

1020231220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351803912 (or 351803905 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1020231220100 its reverse (10221320201), we get a palindrome (1030452540301).

The spelling of 1020231220100 in words is "one trillion, twenty billion, two hundred thirty-one million, two hundred twenty thousand, one hundred".