400100020191011 has 8 divisors (see below), whose sum is σ = 460326005973600. Its totient is φ = 340641244418688.

The previous prime is 400100020190977. The next prime is 400100020191017. The reversal of 400100020191011 is 110191020001004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400100020191011 - 2¹⁸ = 400100019928867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400100020191017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191802501446 + ... + 191802503531.

It is an arithmetic number, because the mean of its divisors is an integer number (57540750746700).

Almost surely, 2^{400100020191011} is an apocalyptic number.

400100020191011 is a deficient number, since it is larger than the sum of its proper divisors (60225985782589).

400100020191011 is a wasteful number, since it uses less digits than its factorization.

400100020191011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383605005133.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 400100020191011 its reverse (110191020001004), we get a palindrome (510291040192015).

The spelling of 400100020191011 in words is "four hundred trillion, one hundred billion, twenty million, one hundred ninety-one thousand, eleven".