10161431290 has 36 divisors (see below), whose sum is σ = 18509472378. Its totient is φ = 4016502000.

The previous prime is 10161431243. The next prime is 10161431299. The reversal of 10161431290 is 9213416101.

It can be written as a sum of positive squares in only one way, i.e., 9145288161 + 1016143129 = 95631^2 + 31877^2 .

It is a super-2 number, since 2×10161431290² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10161431299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 40483665 + ... + 40483915.

Almost surely, 2^10161431290 is an apocalyptic number.

10161431290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10161431290 is a deficient number, since it is larger than the sum of its proper divisors (8348041088).

10161431290 is an frugal number, since it uses more digits than its factorization.

10161431290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 10161431290 its reverse (9213416101), we get a palindrome (19374847391).

The spelling of 10161431290 in words is "ten billion, one hundred sixty-one million, four hundred thirty-one thousand, two hundred ninety".