1010404101252 has 96 divisors (see below), whose sum is σ = 2903946035200. Its totient is φ = 266271484032.

The previous prime is 1010404101241. The next prime is 1010404101283. The reversal of 1010404101252 is 2521014040101.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1034949 + ... + 1758387.

Almost surely, 2^{1010404101252} is an apocalyptic number.

1010404101252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010404101252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451973017600).

1010404101252 is an abundant number, since it is smaller than the sum of its proper divisors (1893541933948).

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

1010404101252 is a wasteful number, since it uses less digits than its factorization.

1010404101252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724745 (or 724743 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 1010404101252 its reverse (2521014040101), we get a palindrome (3531418141353).

The spelling of 1010404101252 in words is "one trillion, ten billion, four hundred four million, one hundred one thousand, two hundred fifty-two".