1011140250 has 64 divisors (see below), whose sum is σ = 2531692800. Its totient is φ = 268795200.

The previous prime is 1011140231. The next prime is 1011140257. The reversal of 1011140250 is 520411101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1011140257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259819 + ... + 263681.

It is an arithmetic number, because the mean of its divisors is an integer number (39557700).

Almost surely, 2^1011140250 is an apocalyptic number.

1011140250 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 1011140250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1265846400).

1011140250 is an abundant number, since it is smaller than the sum of its proper divisors (1520552550).

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

1011140250 is a wasteful number, since it uses less digits than its factorization.

1011140250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232 (or 4222 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1011140250 is about 31798.4315650945. The cubic root of 1011140250 is about 1003.6997119180.

Adding to 1011140250 its reverse (520411101), we get a palindrome (1531551351).

The spelling of 1011140250 in words is "one billion, eleven million, one hundred forty thousand, two hundred fifty".