22402431031 has 2 divisors, whose sum is σ = 22402431032. Its totient is φ = 22402431030.

The previous prime is 22402431017. The next prime is 22402431047. The reversal of 22402431031 is 13013420422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22402431031 - 2¹³ = 22402422839 is a prime.

It is a super-2 number, since 2×22402431031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22402430993 and 22402431011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22402431131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11201215515 + 11201215516.

It is an arithmetic number, because the mean of its divisors is an integer number (11201215516).

Almost surely, 2^22402431031 is an apocalyptic number.

22402431031 is a deficient number, since it is larger than the sum of its proper divisors (1).

22402431031 is an equidigital number, since it uses as much as digits as its factorization.

22402431031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22402431031 its reverse (13013420422), we get a palindrome (35415851453).

The spelling of 22402431031 in words is "twenty-two billion, four hundred two million, four hundred thirty-one thousand, thirty-one".