101211265451 has 8 divisors (see below), whose sum is σ = 102647282400. Its totient is φ = 99775540480.

The previous prime is 101211265417. The next prime is 101211265489. The reversal of 101211265451 is 154562112101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101211265451 - 2²⁶ = 101144156587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101211265411) 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 7 ways as a sum of consecutive naturals, for example, 679865 + ... + 815253.

It is an arithmetic number, because the mean of its divisors is an integer number (12830910300).

Almost surely, 2^101211265451 is an apocalyptic number.

101211265451 is a deficient number, since it is larger than the sum of its proper divisors (1436016949).

101211265451 is a wasteful number, since it uses less digits than its factorization.

101211265451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145989.

The product of its (nonzero) digits is 2400, while the sum is 29.

Adding to 101211265451 its reverse (154562112101), we get a palindrome (255773377552).

The spelling of 101211265451 in words is "one hundred one billion, two hundred eleven million, two hundred sixty-five thousand, four hundred fifty-one".