101420252605 has 32 divisors (see below), whose sum is σ = 142186337280. Its totient is φ = 68000305920.

The previous prime is 101420252599. The next prime is 101420252611. The reversal of 101420252605 is 506252024101.

It is an interprime number because it is at equal distance from previous prime (101420252599) and next prime (101420252611).

It is not a de Polignac number, because 101420252605 - 2¹³ = 101420244413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1716291 + ... + 1774399.

It is an arithmetic number, because the mean of its divisors is an integer number (4443323040).

Almost surely, 2^101420252605 is an apocalyptic number.

It is an amenable number.

101420252605 is a deficient number, since it is larger than the sum of its proper divisors (40766084675).

101420252605 is a wasteful number, since it uses less digits than its factorization.

101420252605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59229.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 101420252605 its reverse (506252024101), we get a palindrome (607672276706).

It can be divided in two parts, 101420 and 252605, that added together give a square (354025 = 595²).

The spelling of 101420252605 in words is "one hundred one billion, four hundred twenty million, two hundred fifty-two thousand, six hundred five".