101421020141431 has 4 divisors (see below), whose sum is σ = 101422283106600. Its totient is φ = 101419757176264.

The previous prime is 101421020141417. The next prime is 101421020141459. The reversal of 101421020141431 is 134141020124101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101421020141431 - 2³⁷ = 101283581187959 is a prime.

It is a super-2 number, since 2×101421020141431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101421020141396 and 101421020141405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101421020147431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631362121 + ... + 631522738.

It is an arithmetic number, because the mean of its divisors is an integer number (25355570776650).

Almost surely, 2^{101421020141431} is an apocalyptic number.

101421020141431 is a deficient number, since it is larger than the sum of its proper divisors (1262965169).

101421020141431 is an equidigital number, since it uses as much as digits as its factorization.

101421020141431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262965168.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 101421020141431 its reverse (134141020124101), we get a palindrome (235562040265532).

The spelling of 101421020141431 in words is "one hundred one trillion, four hundred twenty-one billion, twenty million, one hundred forty-one thousand, four hundred thirty-one".