101231201431 has 2 divisors, whose sum is σ = 101231201432. Its totient is φ = 101231201430.

The previous prime is 101231201419. The next prime is 101231201447. The reversal of 101231201431 is 134102132101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101231201431 - 2⁷ = 101231201303 is a prime.

It is a super-2 number, since 2×101231201431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101231201399 and 101231201408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101231201831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50615600715 + 50615600716.

It is an arithmetic number, because the mean of its divisors is an integer number (50615600716).

Almost surely, 2^101231201431 is an apocalyptic number.

101231201431 is a deficient number, since it is larger than the sum of its proper divisors (1).

101231201431 is an equidigital number, since it uses as much as digits as its factorization.

101231201431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101231201431 its reverse (134102132101), we get a palindrome (235333333532).

The spelling of 101231201431 in words is "one hundred one billion, two hundred thirty-one million, two hundred one thousand, four hundred thirty-one".