400102431143 has 16 divisors (see below), whose sum is σ = 410646297600. Its totient is φ = 389616726240.

The previous prime is 400102431137. The next prime is 400102431163. The reversal of 400102431143 is 341134201004.

It is a cyclic number.

It is not a de Polignac number, because 400102431143 - 2³⁶ = 331382954407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400102431163) 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, 19498373 + ... + 19518881.

It is an arithmetic number, because the mean of its divisors is an integer number (25665393600).

Almost surely, 2^400102431143 is an apocalyptic number.

400102431143 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

400102431143 is a deficient number, since it is larger than the sum of its proper divisors (10543866457).

400102431143 is a wasteful number, since it uses less digits than its factorization.

400102431143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21902.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 400102431143 its reverse (341134201004), we get a palindrome (741236632147).

The spelling of 400102431143 in words is "four hundred billion, one hundred two million, four hundred thirty-one thousand, one hundred forty-three".