10101231450 has 72 divisors (see below), whose sum is σ = 27247068576. Its totient is φ = 2682900000.

The previous prime is 10101231403. The next prime is 10101231457. The reversal of 10101231450 is 5413210101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10101231457) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 68235 + ... + 157665.

It is an arithmetic number, because the mean of its divisors is an integer number (378431508).

Almost surely, 2^10101231450 is an apocalyptic number.

10101231450 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 10101231450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13623534288).

10101231450 is an abundant number, since it is smaller than the sum of its proper divisors (17145837126).

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

10101231450 is a wasteful number, since it uses less digits than its factorization.

10101231450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89700 (or 89692 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 10101231450 its reverse (5413210101), we get a palindrome (15514441551).

The spelling of 10101231450 in words is "ten billion, one hundred one million, two hundred thirty-one thousand, four hundred fifty".