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1030012212121 = 19315591312779
BaseRepresentation
bin11101111110100011000…
…00110001001110011001
310122110122022200202201221
432333101200301032121
5113333431111241441
62105103040212041
7134262443226514
oct16772140611631
93573568622657
101030012212121
1136790a050092
1214775900a021
137618c048339
1437bd234dd7b
151bbd64a38d1
hexefd1831399

1030012212121 has 16 divisors (see below), whose sum is σ = 1119402086400. Its totient is φ = 944151670800.

The previous prime is 1030012212113. The next prime is 1030012212127. The reversal of 1030012212121 is 1212122100301.

It is not a de Polignac number, because 1030012212121 - 23 = 1030012212113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030012212095 and 1030012212104.

It is not an unprimeable number, because it can be changed into a prime (1030012212127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3136710 + ... + 3449488.

It is an arithmetic number, because the mean of its divisors is an integer number (69962630400).

Almost surely, 21030012212121 is an apocalyptic number.

It is an amenable number.

1030012212121 is a deficient number, since it is larger than the sum of its proper divisors (89389874279).

1030012212121 is a wasteful number, since it uses less digits than its factorization.

1030012212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318420.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1030012212121 its reverse (1212122100301), we get a palindrome (2242134312422).

The spelling of 1030012212121 in words is "one trillion, thirty billion, twelve million, two hundred twelve thousand, one hundred twenty-one".

Divisors: 1 19 31 589 5591 106229 173321 312779 3293099 5942801 9696149 184226831 1748747389 33226200391 54211169059 1030012212121