101440030131231 has 16 divisors (see below), whose sum is σ = 147586688789760. Its totient is φ = 61463158617920.

The previous prime is 101440030131191. The next prime is 101440030131259. The reversal of 101440030131231 is 132131030044101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101440030131231 - 2¹⁹ = 101440029606943 is a prime.

It is a super-2 number, since 2×101440030131231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101440030131131) 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, 391056435 + ... + 391315748.

It is an arithmetic number, because the mean of its divisors is an integer number (9224168049360).

Almost surely, 2^{101440030131231} is an apocalyptic number.

101440030131231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101440030131231 is a deficient number, since it is larger than the sum of its proper divisors (46146658658529).

101440030131231 is a wasteful number, since it uses less digits than its factorization.

101440030131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782376126.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 101440030131231 its reverse (132131030044101), we get a palindrome (233571060175332).

The spelling of 101440030131231 in words is "one hundred one trillion, four hundred forty billion, thirty million, one hundred thirty-one thousand, two hundred thirty-one".