102440111004231 has 128 divisors (see below), whose sum is σ = 188694011369472. Its totient is φ = 47706133248000.

The previous prime is 102440111004211. The next prime is 102440111004277. The reversal of 102440111004231 is 132400111044201.

It is a happy number.

It is not a de Polignac number, because 102440111004231 - 2³¹ = 102437963520583 is a prime.

It is a super-2 number, since 2×102440111004231² (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 (102440111004211) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 59258961 + ... + 60963141.

It is an arithmetic number, because the mean of its divisors is an integer number (1474171963824).

Almost surely, 2^{102440111004231} is an apocalyptic number.

102440111004231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102440111004231 is a deficient number, since it is larger than the sum of its proper divisors (86253900365241).

102440111004231 is a wasteful number, since it uses less digits than its factorization.

102440111004231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704793.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 102440111004231 its reverse (132400111044201), we get a palindrome (234840222048432).

The spelling of 102440111004231 in words is "one hundred two trillion, four hundred forty billion, one hundred eleven million, four thousand, two hundred thirty-one".