1001321142 has 32 divisors (see below), whose sum is σ = 2069044224. Its totient is φ = 322725600.

The previous prime is 1001321119. The next prime is 1001321149. The reversal of 1001321142 is 2411231001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001321149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372708 + ... + 375384.

It is an arithmetic number, because the mean of its divisors is an integer number (64657632).

Almost surely, 2^1001321142 is an apocalyptic number.

1001321142 is an abundant number, since it is smaller than the sum of its proper divisors (1067723082).

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

1001321142 is a wasteful number, since it uses less digits than its factorization.

1001321142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4724.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1001321142 is about 31643.6587960368. The cubic root of 1001321142 is about 1000.4401868738.

Adding to 1001321142 its reverse (2411231001), we get a palindrome (3412552143).

The spelling of 1001321142 in words is "one billion, one million, three hundred twenty-one thousand, one hundred forty-two".