102402011431 has 8 divisors (see below), whose sum is σ = 107800974720. Its totient is φ = 97003986552.

The previous prime is 102402011429. The next prime is 102402011489. The reversal of 102402011431 is 134110204201.

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 102402011431 - 2¹ = 102402011429 is a prime.

It is a super-2 number, since 2×102402011431² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102402011399 and 102402011408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102402011531) 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, 4825 + ... + 452578.

It is an arithmetic number, because the mean of its divisors is an integer number (13475121840).

Almost surely, 2^102402011431 is an apocalyptic number.

102402011431 is a deficient number, since it is larger than the sum of its proper divisors (5398963289).

102402011431 is a wasteful number, since it uses less digits than its factorization.

102402011431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469205.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102402011431 its reverse (134110204201), we get a palindrome (236512215632).

The spelling of 102402011431 in words is "one hundred two billion, four hundred two million, eleven thousand, four hundred thirty-one".