101312121403 has 2 divisors, whose sum is σ = 101312121404. Its totient is φ = 101312121402.

The previous prime is 101312121319. The next prime is 101312121409. The reversal of 101312121403 is 304121213101.

It is a strong prime.

It is an emirp because it is prime and its reverse (304121213101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101312121403 - 2¹³ = 101312113211 is a prime.

It is not a weakly prime, because it can be changed into another prime (101312121409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50656060701 + 50656060702.

It is an arithmetic number, because the mean of its divisors is an integer number (50656060702).

Almost surely, 2^101312121403 is an apocalyptic number.

101312121403 is a deficient number, since it is larger than the sum of its proper divisors (1).

101312121403 is an equidigital number, since it uses as much as digits as its factorization.

101312121403 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 101312121403 its reverse (304121213101), we get a palindrome (405433334504).

The spelling of 101312121403 in words is "one hundred one billion, three hundred twelve million, one hundred twenty-one thousand, four hundred three".